<p dir="auto">These should probably be shorten and only show (user-)relevant bits.</p>
<p dir="auto">Example of a stack trace thrown by a failure:</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="DriverError: Error in Flutter application: Timeout while executing tap: TimeoutException after 0:00:05.000000: Future not completed
#0      _FlutterDriverExtension.call.&lt;call_async_body&gt; (package:flutter_driver/src/extension.dart)
#1      _asyncErrorWrapperHelper.&lt;anonymous closure&gt; (dart:async-patch/async_patch.dart:34)
#2      _RootZone.runBinary (dart:async/zone.dart:1410)
#3      _FutureListener.handleError (dart:async/future_impl.dart:146)
#4      _Future._propagateToListeners.handleError (dart:async/future_impl.dart:649)
#5      _Future._propagateToListeners (dart:async/future_impl.dart:671)
#6      _Future._completeError (dart:async/future_impl.dart:485)
#7      _Future.timeout.&lt;anonymous closure&gt; (dart:async/future_impl.dart:719)
#8      Timer._createTimer.&lt;anonymous closure&gt; (dart:async-patch/timer_patch.dart:16)
#9      _Timer._runTimers (dart:isolate-patch/timer_impl.dart:385)
#10     _Timer._handleMessage (dart:isolate-patch/timer_impl.dart:414)
#11     _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:148)

Original error: null
Original stack trace:
null
package:flutter_driver/src/driver.dart 249:7                                                                                                                                  FlutterDriver._sendCommand.&lt;async&gt;
dart:async-patch/async_patch.dart 27                                                                                                                                          _asyncThenWrapperHelper.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/future_impl.dart 131                                                                                                                                               _FutureListener.handleValue
dart:async/future_impl.dart 637                                                                                                                                               _Future._propagateToListeners.handleValueCallback
dart:async/future_impl.dart 667                                                                                                                                               _Future._propagateToListeners
dart:async/future_impl.dart 477                                                                                                                                               _Future._completeWithValue
dart:async/future_impl.dart 736                                                                                                                                               _Future.timeout.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/future_impl.dart 131                                                                                                                                               _FutureListener.handleValue
dart:async/future_impl.dart 637                                                                                                                                               _Future._propagateToListeners.handleValueCallback
dart:async/future_impl.dart 667                                                                                                                                               _Future._propagateToListeners
dart:async/future_impl.dart 467                                                                                                                                               _Future._complete
dart:async/future_impl.dart 52                                                                                                                                                _SyncCompleter.complete
package:vm_service_client/src/scope.dart 57:5                                                                                                                                 Scope.sendRequestRaw.&lt;async&gt;
dart:async-patch/async_patch.dart 27                                                                                                                                          _asyncThenWrapperHelper.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/future_impl.dart 131                                                                                                                                               _FutureListener.handleValue
dart:async/future_impl.dart 637                                                                                                                                               _Future._propagateToListeners.handleValueCallback
dart:async/future_impl.dart 667                                                                                                                                               _Future._propagateToListeners
dart:async/future_impl.dart 467                                                                                                                                               _Future._complete
dart:async/future_impl.dart 52                                                                                                                                                _SyncCompleter.complete
package:json_rpc_2/src/client.dart 174:25                                                                                                                                     Client._handleSingleResponse
package:json_rpc_2/src/client.dart 164:7                                                                                                                                      Client._handleResponse
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
package:json_rpc_2/src/peer.dart 91:36                                                                                                                                        Peer.listen.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_pipe.dart 144                                                                                                                                               _ForwardingStreamSubscription._add
dart:async/stream_pipe.dart 244                                                                                                                                               _MapStream._handleData
dart:async/stream_pipe.dart 176                                                                                                                                               _ForwardingStreamSubscription._handleData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_pipe.dart 144                                                                                                                                               _ForwardingStreamSubscription._add
dart:async/stream_pipe.dart 244                                                                                                                                               _MapStream._handleData
dart:async/stream_pipe.dart 176                                                                                                                                               _ForwardingStreamSubscription._handleData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_pipe.dart 144                                                                                                                                               _ForwardingStreamSubscription._add
dart:async/stream_pipe.dart 108                                                                                                                                               _ForwardingStream._handleData
dart:async/stream_pipe.dart 176                                                                                                                                               _ForwardingStreamSubscription._handleData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:io/websocket_impl.dart 1111                                                                                                                                              _WebSocketImpl._WebSocketImpl._fromSocket.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_transformers.dart 67                                                                                                                                        _SinkTransformerStreamSubscription._add
dart:async/stream_transformers.dart 14                                                                                                                                        _EventSinkWrapper.add
dart:io/websocket_impl.dart 333                                                                                                                                               _WebSocketProtocolTransformer._messageFrameEnd
dart:io/websocket_impl.dart 228                                                                                                                                               _WebSocketProtocolTransformer.add
dart:async/stream_transformers.dart 119                                                                                                                                       _SinkTransformerStreamSubscription._handleData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:io-patch/socket_patch.dart 1680                                                                                                                                          _Socket._onData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1162                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:io-patch/socket_patch.dart 1247                                                                                                                                          _RawSocket._RawSocket.&lt;fn&gt;
dart:io-patch/socket_patch.dart 781                                                                                                                                           _NativeSocket.issueReadEvent.issue
dart:async/schedule_microtask.dart 41                                                                                                                                         _microtaskLoop
dart:async/schedule_microtask.dart 50                                                                                                                                         _startMicrotaskLoop
dart:isolate-patch/isolate_patch.dart 96                                                                                                                                      _runPendingImmediateCallback
dart:isolate-patch/isolate_patch.dart 149                                                                                                                                     _RawReceivePortImpl._handleMessage
===== asynchronous gap ===========================
dart:async/future_impl.dart 22                                                                                                                                                _Completer.completeError
package:flutter_driver/src/driver.dart 254:3                                                                                                                                  FlutterDriver._sendCommand.&lt;async&gt;
dart:async-patch/async_patch.dart 27                                                                                                                                          _asyncThenWrapperHelper.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/future_impl.dart 131                                                                                                                                               _FutureListener.handleValue
dart:async/future_impl.dart 637                                                                                                                                               _Future._propagateToListeners.handleValueCallback
dart:async/future_impl.dart 667                                                                                                                                               _Future._propagateToListeners
dart:async/future_impl.dart 477                                                                                                                                               _Future._completeWithValue
dart:async/future_impl.dart 736                                                                                                                                               _Future.timeout.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/future_impl.dart 131                                                                                                                                               _FutureListener.handleValue
dart:async/future_impl.dart 637                                                                                                                                               _Future._propagateToListeners.handleValueCallback
dart:async/future_impl.dart 667                                                                                                                                               _Future._propagateToListeners
dart:async/future_impl.dart 467                                                                                                                                               _Future._complete
dart:async/future_impl.dart 52                                                                                                                                                _SyncCompleter.complete
package:vm_service_client/src/scope.dart 57:5                                                                                                                                 Scope.sendRequestRaw.&lt;async&gt;
dart:async-patch/async_patch.dart 27                                                                                                                                          _asyncThenWrapperHelper.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/future_impl.dart 131                                                                                                                                               _FutureListener.handleValue
dart:async/future_impl.dart 637                                                                                                                                               _Future._propagateToListeners.handleValueCallback
dart:async/future_impl.dart 667                                                                                                                                               _Future._propagateToListeners
dart:async/future_impl.dart 467                                                                                                                                               _Future._complete
dart:async/future_impl.dart 52                                                                                                                                                _SyncCompleter.complete
package:json_rpc_2/src/client.dart 174:25                                                                                                                                     Client._handleSingleResponse
package:json_rpc_2/src/client.dart 164:7                                                                                                                                      Client._handleResponse
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
package:json_rpc_2/src/peer.dart 91:36                                                                                                                                        Peer.listen.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_pipe.dart 144                                                                                                                                               _ForwardingStreamSubscription._add
dart:async/stream_pipe.dart 244                                                                                                                                               _MapStream._handleData
dart:async/stream_pipe.dart 176                                                                                                                                               _ForwardingStreamSubscription._handleData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_pipe.dart 144                                                                                                                                               _ForwardingStreamSubscription._add
dart:async/stream_pipe.dart 244                                                                                                                                               _MapStream._handleData
dart:async/stream_pipe.dart 176                                                                                                                                               _ForwardingStreamSubscription._handleData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_pipe.dart 144                                                                                                                                               _ForwardingStreamSubscription._add
dart:async/stream_pipe.dart 108                                                                                                                                               _ForwardingStream._handleData
dart:async/stream_pipe.dart 176                                                                                                                                               _ForwardingStreamSubscription._handleData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:io/websocket_impl.dart 1111                                                                                                                                              _WebSocketImpl._WebSocketImpl._fromSocket.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_transformers.dart 67                                                                                                                                        _SinkTransformerStreamSubscription._add
dart:async/stream_transformers.dart 14                                                                                                                                        _EventSinkWrapper.add
dart:io/websocket_impl.dart 333                                                                                                                                               _WebSocketProtocolTransformer._messageFrameEnd
dart:io/websocket_impl.dart 228                                                                                                                                               _WebSocketProtocolTransformer.add
dart:async/stream_transformers.dart 119                                                                                                                                       _SinkTransformerStreamSubscription._handleData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:io-patch/socket_patch.dart 1680                                                                                                                                          _Socket._onData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1162                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:io-patch/socket_patch.dart 1247                                                                                                                                          _RawSocket._RawSocket.&lt;fn&gt;
dart:io-patch/socket_patch.dart 781                                                                                                                                           _NativeSocket.issueReadEvent.issue
dart:async/schedule_microtask.dart 41                                                                                                                                         _microtaskLoop
dart:async/schedule_microtask.dart 50                                                                                                                                         _startMicrotaskLoop
dart:isolate-patch/isolate_patch.dart 96                                                                                                                                      _runPendingImmediateCallback
dart:isolate-patch/isolate_patch.dart 149                                                                                                                                     _RawReceivePortImpl._handleMessage
===== asynchronous gap ===========================
dart:async/zone.dart 1073                                                                                                                                                     _CustomZone.registerUnaryCallback
dart:async-patch/async_patch.dart 27                                                                                                                                          _asyncThenWrapperHelper
package:flutter_driver/src/driver.dart                                                                                                                                        FlutterDriver._sendCommand
package:flutter_driver/src/driver.dart 265:11                                                                                                                                 FlutterDriver.tap.&lt;async&gt;
dart:async/future.dart 184                                                                                                                                                    Future.Future.microtask.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1146                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1150                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
dart:async/schedule_microtask.dart 41                                                                                                                                         _microtaskLoop
dart:async/schedule_microtask.dart 50                                                                                                                                         _startMicrotaskLoop
dart:isolate-patch/timer_impl.dart 394                                                                                                                                        _Timer._runTimers
dart:isolate-patch/timer_impl.dart 414                                                                                                                                        _Timer._handleMessage
dart:isolate-patch/isolate_patch.dart 148                                                                                                                                     _RawReceivePortImpl._handleMessage
===== asynchronous gap ===========================
dart:async/zone.dart 1061                                                                                                                                                     _CustomZone.registerCallback
dart:async/zone.dart 949                                                                                                                                                      _CustomZone.bindCallback
dart:async/schedule_microtask.dart 148                                                                                                                                        scheduleMicrotask
dart:async/future.dart 182                                                                                                                                                    Future.Future.microtask
package:flutter_driver/src/driver.dart                                                                                                                                        FlutterDriver.tap
/var/netboot/workspace/4a2ad6d25053194e375b3d74e416f05f_863445_69759/google3/third_party/dart/flutter/examples/gallery/flutter/test_driver/transitions_perf_test.dart 160:26  main.&lt;fn&gt;.&lt;fn&gt;.&lt;async&gt;.&lt;fn&gt;.&lt;async&gt;
dart:async-patch/async_patch.dart 27                                                                                                                                          _asyncThenWrapperHelper.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/future_impl.dart 131                                                                                                                                               _FutureListener.handleValue
dart:async/future_impl.dart 637                                                                                                                                               _Future._propagateToListeners.handleValueCallback
dart:async/future_impl.dart 667                                                                                                                                               _Future._propagateToListeners
dart:async/future_impl.dart 467                                                                                                                                               _Future._complete
dart:async/future.dart 268                                                                                                                                                    Future.Future.delayed.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1146                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1150                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
dart:async-patch/timer_patch.dart 16                                                                                                                                          Timer._createTimer.&lt;fn&gt;
dart:isolate-patch/timer_impl.dart 385                                                                                                                                        _Timer._runTimers
dart:isolate-patch/timer_impl.dart 414                                                                                                                                        _Timer._handleMessage
dart:isolate-patch/isolate_patch.dart 148                                                                                                                                     _RawReceivePortImpl._handleMessage
===== asynchronous gap ===========================
dart:async/zone.dart 1073                                                                                                                                                     _CustomZone.registerUnaryCallback
dart:async-patch/async_patch.dart 27                                                                                                                                          _asyncThenWrapperHelper
/var/netboot/workspace/4a2ad6d25053194e375b3d74e416f05f_863445_69759/google3/third_party/dart/flutter/examples/gallery/flutter/test_driver/transitions_perf_test.dart         main.&lt;fn&gt;.&lt;fn&gt;.&lt;async&gt;.&lt;fn&gt;
package:flutter_driver/src/driver.dart 394:17                                                                                                                                 FlutterDriver.traceAction.&lt;async&gt;
dart:async-patch/async_patch.dart 27                                                                                                                                          _asyncThenWrapperHelper.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/future_impl.dart 131                                                                                                                                               _FutureListener.handleValue
dart:async/future_impl.dart 637                                                                                                                                               _Future._propagateToListeners.handleValueCallback
dart:async/future_impl.dart 667                                                                                                                                               _Future._propagateToListeners
dart:async/future_impl.dart 467                                                                                                                                               _Future._complete
dart:async/future_impl.dart 52                                                                                                                                                _SyncCompleter.complete
package:flutter_driver/src/driver.dart 358:7                                                                                                                                  FlutterDriver.startTracing.&lt;async&gt;
dart:async-patch/async_patch.dart 27                                                                                                                                          _asyncThenWrapperHelper.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/future_impl.dart 131                                                                                                                                               _FutureListener.handleValue
dart:async/future_impl.dart 637                                                                                                                                               _Future._propagateToListeners.handleValueCallback
dart:async/future_impl.dart 667                                                                                                                                               _Future._propagateToListeners
dart:async/future_impl.dart 467                                                                                                                                               _Future._complete
dart:async/future_impl.dart 52                                                                                                                                                _SyncCompleter.complete
package:json_rpc_2/src/client.dart 174:25                                                                                                                                     Client._handleSingleResponse
package:json_rpc_2/src/client.dart 164:7                                                                                                                                      Client._handleResponse
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
package:json_rpc_2/src/peer.dart 91:36                                                                                                                                        Peer.listen.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_pipe.dart 144                                                                                                                                               _ForwardingStreamSubscription._add
dart:async/stream_pipe.dart 108                                                                                                                                               _ForwardingStream._handleData
dart:async/stream_pipe.dart 176                                                                                                                                               _ForwardingStreamSubscription._handleData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_pipe.dart 144                                                                                                                                               _ForwardingStreamSubscription._add
dart:async/stream_pipe.dart 244                                                                                                                                               _MapStream._handleData
dart:async/stream_pipe.dart 176                                                                                                                                               _ForwardingStreamSubscription._handleData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_pipe.dart 144                                                                                                                                               _ForwardingStreamSubscription._add
dart:async/stream_pipe.dart 108                                                                                                                                               _ForwardingStream._handleData
dart:async/stream_pipe.dart 176                                                                                                                                               _ForwardingStreamSubscription._handleData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:io/websocket_impl.dart 1111                                                                                                                                              _WebSocketImpl._WebSocketImpl._fromSocket.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_transformers.dart 67                                                                                                                                        _SinkTransformerStreamSubscription._add
dart:async/stream_transformers.dart 14                                                                                                                                        _EventSinkWrapper.add
dart:io/websocket_impl.dart 333                                                                                                                                               _WebSocketProtocolTransformer._messageFrameEnd
dart:io/websocket_impl.dart 228                                                                                                                                               _WebSocketProtocolTransformer.add
dart:async/stream_transformers.dart 119                                                                                                                                       _SinkTransformerStreamSubscription._handleData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:io-patch/socket_patch.dart 1680                                                                                                                                          _Socket._onData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1162                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:io-patch/socket_patch.dart 1247                                                                                                                                          _RawSocket._RawSocket.&lt;fn&gt;
dart:io-patch/socket_patch.dart 781                                                                                                                                           _NativeSocket.issueReadEvent.issue
dart:async/schedule_microtask.dart 41                                                                                                                                         _microtaskLoop
dart:async/schedule_microtask.dart 50                                                                                                                                         _startMicrotaskLoop
dart:isolate-patch/isolate_patch.dart 96                                                                                                                                      _runPendingImmediateCallback
dart:isolate-patch/isolate_patch.dart 149                                                                                                                                     _RawReceivePortImpl._handleMessage
===== asynchronous gap ===========================
dart:async/zone.dart 1073                                                                                                                                                     _CustomZone.registerUnaryCallback
dart:async-patch/async_patch.dart 27                                                                                                                                          _asyncThenWrapperHelper
package:flutter_driver/src/driver.dart                                                                                                                                        FlutterDriver.traceAction
/var/netboot/workspace/4a2ad6d25053194e375b3d74e416f05f_863445_69759/google3/third_party/dart/flutter/examples/gallery/flutter/test_driver/transitions_perf_test.dart 143:40  main.&lt;fn&gt;.&lt;fn&gt;.&lt;async&gt;
dart:async/future.dart 184                                                                                                                                                    Future.Future.microtask.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1146                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1150                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
dart:async/schedule_microtask.dart 41                                                                                                                                         _microtaskLoop
dart:async/schedule_microtask.dart 50                                                                                                                                         _startMicrotaskLoop
dart:isolate-patch/timer_impl.dart 394                                                                                                                                        _Timer._runTimers
dart:isolate-patch/timer_impl.dart 414                                                                                                                                        _Timer._handleMessage
dart:isolate-patch/isolate_patch.dart 148                                                                                                                                     _RawReceivePortImpl._handleMessage
===== asynchronous gap ===========================
dart:async/zone.dart 1061                                                                                                                                                     _CustomZone.registerCallback
dart:async/zone.dart 949                                                                                                                                                      _CustomZone.bindCallback
dart:async/schedule_microtask.dart 148                                                                                                                                        scheduleMicrotask
dart:async/future.dart 182                                                                                                                                                    Future.Future.microtask
/var/netboot/workspace/4a2ad6d25053194e375b3d74e416f05f_863445_69759/google3/third_party/dart/flutter/examples/gallery/flutter/test_driver/transitions_perf_test.dart         main.&lt;fn&gt;.&lt;fn&gt;
package:test/src/backend/declarer.dart 114:19                                                                                                                                 Declarer.test.&lt;fn&gt;.&lt;async&gt;.&lt;fn&gt;.&lt;async&gt;
dart:async-patch/async_patch.dart 27                                                                                                                                          _asyncThenWrapperHelper.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/future_impl.dart 131                                                                                                                                               _FutureListener.handleValue
dart:async/future_impl.dart 637                                                                                                                                               _Future._propagateToListeners.handleValueCallback
dart:async/future_impl.dart 667                                                                                                                                               _Future._propagateToListeners
dart:async/future_impl.dart 467                                                                                                                                               _Future._complete
dart:async/future_impl.dart 52                                                                                                                                                _SyncCompleter.complete
package:test/src/backend/declarer.dart 198:3                                                                                                                                  Declarer._runSetUps.&lt;async&gt;
dart:async-patch/async_patch.dart 27                                                                                                                                          _asyncThenWrapperHelper.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/future_impl.dart 131                                                                                                                                               _FutureListener.handleValue
dart:async/future_impl.dart 637                                                                                                                                               _Future._propagateToListeners.handleValueCallback
dart:async/future_impl.dart 667                                                                                                                                               _Future._propagateToListeners
dart:async/future_impl.dart 467                                                                                                                                               _Future._complete
dart:async/future.dart 454                                                                                                                                                    Future.doWhile.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/zone.dart 961                                                                                                                                                      _CustomZone.bindUnaryCallback.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/future_impl.dart 131                                                                                                                                               _FutureListener.handleValue
dart:async/future_impl.dart 637                                                                                                                                               _Future._propagateToListeners.handleValueCallback
dart:async/future_impl.dart 667                                                                                                                                               _Future._propagateToListeners
dart:async/future_impl.dart 477                                                                                                                                               _Future._completeWithValue
dart:async/future_impl.dart 528                                                                                                                                               _Future._asyncComplete.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1150                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
dart:async/schedule_microtask.dart 41                                                                                                                                         _microtaskLoop
dart:async/schedule_microtask.dart 50                                                                                                                                         _startMicrotaskLoop
dart:isolate-patch/timer_impl.dart 394                                                                                                                                        _Timer._runTimers
dart:isolate-patch/timer_impl.dart 414                                                                                                                                        _Timer._handleMessage
dart:isolate-patch/isolate_patch.dart 148                                                                                                                                     _RawReceivePortImpl._handleMessage
===== asynchronous gap ===========================
dart:async/zone.dart 1073                                                                                                                                                     _CustomZone.registerUnaryCallback
dart:async-patch/async_patch.dart 27                                                                                                                                          _asyncThenWrapperHelper
package:test/src/backend/declarer.dart                                                                                                                                        Declarer.test.&lt;fn&gt;.&lt;async&gt;.&lt;fn&gt;
package:test/src/backend/invoker.dart 188:17                                                                                                                                  Invoker.waitForOutstandingCallbacks.&lt;fn&gt;.&lt;fn&gt;.&lt;async&gt;
dart:async/future.dart 184                                                                                                                                                    Future.Future.microtask.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1146                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1150                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
dart:async/schedule_microtask.dart 41                                                                                                                                         _microtaskLoop
dart:async/schedule_microtask.dart 50                                                                                                                                         _startMicrotaskLoop
dart:isolate-patch/timer_impl.dart 394                                                                                                                                        _Timer._runTimers
dart:isolate-patch/timer_impl.dart 414                                                                                                                                        _Timer._handleMessage
dart:isolate-patch/isolate_patch.dart 148                                                                                                                                     _RawReceivePortImpl._handleMessage
===== asynchronous gap ===========================
dart:async/zone.dart 1061                                                                                                                                                     _CustomZone.registerCallback
dart:async/zone.dart 949                                                                                                                                                      _CustomZone.bindCallback
dart:async/schedule_microtask.dart 148                                                                                                                                        scheduleMicrotask
dart:async/future.dart 182                                                                                                                                                    Future.Future.microtask
package:test/src/backend/invoker.dart                                                                                                                                         Invoker.waitForOutstandingCallbacks.&lt;fn&gt;.&lt;fn&gt;
dart:async/zone.dart 1150                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 1501                                                                                                                                                     runZoned
package:test/src/backend/invoker.dart 185:7                                                                                                                                   Invoker.waitForOutstandingCallbacks.&lt;fn&gt;
dart:async/zone.dart 1150                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 1503                                                                                                                                                     runZoned
package:test/src/backend/invoker.dart 184:5                                                                                                                                   Invoker.waitForOutstandingCallbacks
package:test/src/backend/declarer.dart 112:29                                                                                                                                 Declarer.test.&lt;fn&gt;.&lt;async&gt;
dart:async/future.dart 184                                                                                                                                                    Future.Future.microtask.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1146                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1150                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
dart:async/schedule_microtask.dart 41                                                                                                                                         _microtaskLoop
dart:async/schedule_microtask.dart 50                                                                                                                                         _startMicrotaskLoop
dart:isolate-patch/timer_impl.dart 394                                                                                                                                        _Timer._runTimers
dart:isolate-patch/timer_impl.dart 414                                                                                                                                        _Timer._handleMessage
dart:isolate-patch/isolate_patch.dart 148                                                                                                                                     _RawReceivePortImpl._handleMessage
===== asynchronous gap ===========================
dart:async/zone.dart 1061                                                                                                                                                     _CustomZone.registerCallback
dart:async/zone.dart 949                                                                                                                                                      _CustomZone.bindCallback
dart:async/schedule_microtask.dart 148                                                                                                                                        scheduleMicrotask
dart:async/future.dart 182                                                                                                                                                    Future.Future.microtask
package:test/src/backend/declarer.dart                                                                                                                                        Declarer.test.&lt;fn&gt;
dart:async/future.dart 158                                                                                                                                                    Future.Future.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1146                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1150                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
dart:async-patch/timer_patch.dart 16                                                                                                                                          Timer._createTimer.&lt;fn&gt;
dart:isolate-patch/timer_impl.dart 385                                                                                                                                        _Timer._runTimers
dart:isolate-patch/timer_impl.dart 414                                                                                                                                        _Timer._handleMessage
dart:isolate-patch/isolate_patch.dart 148                                                                                                                                     _RawReceivePortImpl._handleMessage
===== asynchronous gap ===========================
dart:async/zone.dart 1061                                                                                                                                                     _CustomZone.registerCallback
dart:async/zone.dart 949                                                                                                                                                      _CustomZone.bindCallback
dart:async/timer.dart 53                                                                                                                                                      Timer.Timer
dart:async/timer.dart 92                                                                                                                                                      Timer.run
dart:async/future.dart 156                                                                                                                                                    Future.Future
package:test/src/backend/invoker.dart 309:13                                                                                                                                  Invoker._onRun.&lt;fn&gt;.&lt;fn&gt;.&lt;async&gt;
dart:async/future.dart 184                                                                                                                                                    Future.Future.microtask.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1146                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1150                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
dart:async/schedule_microtask.dart 41                                                                                                                                         _microtaskLoop
dart:async/schedule_microtask.dart 50                                                                                                                                         _startMicrotaskLoop
dart:isolate-patch/isolate_patch.dart 96                                                                                                                                      _runPendingImmediateCallback
dart:isolate-patch/isolate_patch.dart 149                                                                                                                                     _RawReceivePortImpl._handleMessage
===== asynchronous gap ===========================
dart:async/zone.dart 1061                                                                                                                                                     _CustomZone.registerCallback
dart:async/zone.dart 949                                                                                                                                                      _CustomZone.bindCallback
dart:async/schedule_microtask.dart 148                                                                                                                                        scheduleMicrotask
dart:async/future.dart 182                                                                                                                                                    Future.Future.microtask
package:test/src/backend/invoker.dart                                                                                                                                         Invoker._onRun.&lt;fn&gt;.&lt;fn&gt;
dart:async/zone.dart 1150                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 1501                                                                                                                                                     runZoned
package:test/src/utils.dart 202:12                                                                                                                                            runZonedWithValues.&lt;fn&gt;
dart:async/zone.dart 1150                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 1503                                                                                                                                                     runZoned
package:test/src/utils.dart 201:10                                                                                                                                            runZonedWithValues
package:test/src/backend/invoker.dart 296:7                                                                                                                                   Invoker._onRun.&lt;fn&gt;
package:stack_trace/src/chain.dart 92:24                                                                                                                                      Chain.capture.&lt;fn&gt;
dart:async/zone.dart 1150                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 1503                                                                                                                                                     runZoned
package:stack_trace/src/chain.dart 90:12                                                                                                                                      Chain.capture
package:test/src/backend/invoker.dart 295:11                                                                                                                                  Invoker._onRun
package:test/src/backend/live_test_controller.dart 189:11                                                                                                                     LiveTestController._run
package:test/src/backend/live_test_controller.dart 40:31                                                                                                                      _LiveTest.run
package:test/src/runner/remote_listener.dart 197:14                                                                                                                           RemoteListener._runLiveTest
package:test/src/runner/remote_listener.dart 151:7                                                                                                                            RemoteListener._serializeTest.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:async/zone.dart 1162                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:async/stream_controller.dart 868                                                                                                                                         _StreamSinkWrapper.add
package:stream_channel/src/guarantee_channel.dart 120:12                                                                                                                      _GuaranteeSink.add
package:stream_channel/src/multi_channel.dart 137:31                                                                                                                          _MultiChannel._MultiChannel.&lt;fn&gt;
dart:async/zone.dart 1338                                                                                                                                                     _RootZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:async/zone.dart 1338                                                                                                                                                     _RootZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:async/stream_controller.dart 868                                                                                                                                         _StreamSinkWrapper.add
dart:async/zone.dart 1338                                                                                                                                                     _RootZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:async/zone.dart 1338                                                                                                                                                     _RootZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:async/stream_controller.dart 868                                                                                                                                         _StreamSinkWrapper.add
dart:async/zone.dart 1338                                                                                                                                                     _RootZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:isolate-patch/isolate_patch.dart 148                                                                                                                                     _RawReceivePortImpl._handleMessage"><pre class="notranslate"><code class="notranslate">DriverError: Error in Flutter application: Timeout while executing tap: TimeoutException after 0:00:05.000000: Future not completed
#0      _FlutterDriverExtension.call.&lt;call_async_body&gt; (package:flutter_driver/src/extension.dart)
#1      _asyncErrorWrapperHelper.&lt;anonymous closure&gt; (dart:async-patch/async_patch.dart:34)
#2      _RootZone.runBinary (dart:async/zone.dart:1410)
#3      _FutureListener.handleError (dart:async/future_impl.dart:146)
#4      _Future._propagateToListeners.handleError (dart:async/future_impl.dart:649)
#5      _Future._propagateToListeners (dart:async/future_impl.dart:671)
#6      _Future._completeError (dart:async/future_impl.dart:485)
#7      _Future.timeout.&lt;anonymous closure&gt; (dart:async/future_impl.dart:719)
#8      Timer._createTimer.&lt;anonymous closure&gt; (dart:async-patch/timer_patch.dart:16)
#9      _Timer._runTimers (dart:isolate-patch/timer_impl.dart:385)
#10     _Timer._handleMessage (dart:isolate-patch/timer_impl.dart:414)
#11     _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:148)

Original error: null
Original stack trace:
null
package:flutter_driver/src/driver.dart 249:7                                                                                                                                  FlutterDriver._sendCommand.&lt;async&gt;
dart:async-patch/async_patch.dart 27                                                                                                                                          _asyncThenWrapperHelper.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/future_impl.dart 131                                                                                                                                               _FutureListener.handleValue
dart:async/future_impl.dart 637                                                                                                                                               _Future._propagateToListeners.handleValueCallback
dart:async/future_impl.dart 667                                                                                                                                               _Future._propagateToListeners
dart:async/future_impl.dart 477                                                                                                                                               _Future._completeWithValue
dart:async/future_impl.dart 736                                                                                                                                               _Future.timeout.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/future_impl.dart 131                                                                                                                                               _FutureListener.handleValue
dart:async/future_impl.dart 637                                                                                                                                               _Future._propagateToListeners.handleValueCallback
dart:async/future_impl.dart 667                                                                                                                                               _Future._propagateToListeners
dart:async/future_impl.dart 467                                                                                                                                               _Future._complete
dart:async/future_impl.dart 52                                                                                                                                                _SyncCompleter.complete
package:vm_service_client/src/scope.dart 57:5                                                                                                                                 Scope.sendRequestRaw.&lt;async&gt;
dart:async-patch/async_patch.dart 27                                                                                                                                          _asyncThenWrapperHelper.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/future_impl.dart 131                                                                                                                                               _FutureListener.handleValue
dart:async/future_impl.dart 637                                                                                                                                               _Future._propagateToListeners.handleValueCallback
dart:async/future_impl.dart 667                                                                                                                                               _Future._propagateToListeners
dart:async/future_impl.dart 467                                                                                                                                               _Future._complete
dart:async/future_impl.dart 52                                                                                                                                                _SyncCompleter.complete
package:json_rpc_2/src/client.dart 174:25                                                                                                                                     Client._handleSingleResponse
package:json_rpc_2/src/client.dart 164:7                                                                                                                                      Client._handleResponse
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
package:json_rpc_2/src/peer.dart 91:36                                                                                                                                        Peer.listen.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_pipe.dart 144                                                                                                                                               _ForwardingStreamSubscription._add
dart:async/stream_pipe.dart 244                                                                                                                                               _MapStream._handleData
dart:async/stream_pipe.dart 176                                                                                                                                               _ForwardingStreamSubscription._handleData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_pipe.dart 144                                                                                                                                               _ForwardingStreamSubscription._add
dart:async/stream_pipe.dart 244                                                                                                                                               _MapStream._handleData
dart:async/stream_pipe.dart 176                                                                                                                                               _ForwardingStreamSubscription._handleData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_pipe.dart 144                                                                                                                                               _ForwardingStreamSubscription._add
dart:async/stream_pipe.dart 108                                                                                                                                               _ForwardingStream._handleData
dart:async/stream_pipe.dart 176                                                                                                                                               _ForwardingStreamSubscription._handleData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:io/websocket_impl.dart 1111                                                                                                                                              _WebSocketImpl._WebSocketImpl._fromSocket.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_transformers.dart 67                                                                                                                                        _SinkTransformerStreamSubscription._add
dart:async/stream_transformers.dart 14                                                                                                                                        _EventSinkWrapper.add
dart:io/websocket_impl.dart 333                                                                                                                                               _WebSocketProtocolTransformer._messageFrameEnd
dart:io/websocket_impl.dart 228                                                                                                                                               _WebSocketProtocolTransformer.add
dart:async/stream_transformers.dart 119                                                                                                                                       _SinkTransformerStreamSubscription._handleData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:io-patch/socket_patch.dart 1680                                                                                                                                          _Socket._onData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1162                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:io-patch/socket_patch.dart 1247                                                                                                                                          _RawSocket._RawSocket.&lt;fn&gt;
dart:io-patch/socket_patch.dart 781                                                                                                                                           _NativeSocket.issueReadEvent.issue
dart:async/schedule_microtask.dart 41                                                                                                                                         _microtaskLoop
dart:async/schedule_microtask.dart 50                                                                                                                                         _startMicrotaskLoop
dart:isolate-patch/isolate_patch.dart 96                                                                                                                                      _runPendingImmediateCallback
dart:isolate-patch/isolate_patch.dart 149                                                                                                                                     _RawReceivePortImpl._handleMessage
===== asynchronous gap ===========================
dart:async/future_impl.dart 22                                                                                                                                                _Completer.completeError
package:flutter_driver/src/driver.dart 254:3                                                                                                                                  FlutterDriver._sendCommand.&lt;async&gt;
dart:async-patch/async_patch.dart 27                                                                                                                                          _asyncThenWrapperHelper.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/future_impl.dart 131                                                                                                                                               _FutureListener.handleValue
dart:async/future_impl.dart 637                                                                                                                                               _Future._propagateToListeners.handleValueCallback
dart:async/future_impl.dart 667                                                                                                                                               _Future._propagateToListeners
dart:async/future_impl.dart 477                                                                                                                                               _Future._completeWithValue
dart:async/future_impl.dart 736                                                                                                                                               _Future.timeout.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/future_impl.dart 131                                                                                                                                               _FutureListener.handleValue
dart:async/future_impl.dart 637                                                                                                                                               _Future._propagateToListeners.handleValueCallback
dart:async/future_impl.dart 667                                                                                                                                               _Future._propagateToListeners
dart:async/future_impl.dart 467                                                                                                                                               _Future._complete
dart:async/future_impl.dart 52                                                                                                                                                _SyncCompleter.complete
package:vm_service_client/src/scope.dart 57:5                                                                                                                                 Scope.sendRequestRaw.&lt;async&gt;
dart:async-patch/async_patch.dart 27                                                                                                                                          _asyncThenWrapperHelper.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/future_impl.dart 131                                                                                                                                               _FutureListener.handleValue
dart:async/future_impl.dart 637                                                                                                                                               _Future._propagateToListeners.handleValueCallback
dart:async/future_impl.dart 667                                                                                                                                               _Future._propagateToListeners
dart:async/future_impl.dart 467                                                                                                                                               _Future._complete
dart:async/future_impl.dart 52                                                                                                                                                _SyncCompleter.complete
package:json_rpc_2/src/client.dart 174:25                                                                                                                                     Client._handleSingleResponse
package:json_rpc_2/src/client.dart 164:7                                                                                                                                      Client._handleResponse
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
package:json_rpc_2/src/peer.dart 91:36                                                                                                                                        Peer.listen.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_pipe.dart 144                                                                                                                                               _ForwardingStreamSubscription._add
dart:async/stream_pipe.dart 244                                                                                                                                               _MapStream._handleData
dart:async/stream_pipe.dart 176                                                                                                                                               _ForwardingStreamSubscription._handleData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_pipe.dart 144                                                                                                                                               _ForwardingStreamSubscription._add
dart:async/stream_pipe.dart 244                                                                                                                                               _MapStream._handleData
dart:async/stream_pipe.dart 176                                                                                                                                               _ForwardingStreamSubscription._handleData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_pipe.dart 144                                                                                                                                               _ForwardingStreamSubscription._add
dart:async/stream_pipe.dart 108                                                                                                                                               _ForwardingStream._handleData
dart:async/stream_pipe.dart 176                                                                                                                                               _ForwardingStreamSubscription._handleData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:io/websocket_impl.dart 1111                                                                                                                                              _WebSocketImpl._WebSocketImpl._fromSocket.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_transformers.dart 67                                                                                                                                        _SinkTransformerStreamSubscription._add
dart:async/stream_transformers.dart 14                                                                                                                                        _EventSinkWrapper.add
dart:io/websocket_impl.dart 333                                                                                                                                               _WebSocketProtocolTransformer._messageFrameEnd
dart:io/websocket_impl.dart 228                                                                                                                                               _WebSocketProtocolTransformer.add
dart:async/stream_transformers.dart 119                                                                                                                                       _SinkTransformerStreamSubscription._handleData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:io-patch/socket_patch.dart 1680                                                                                                                                          _Socket._onData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1162                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:io-patch/socket_patch.dart 1247                                                                                                                                          _RawSocket._RawSocket.&lt;fn&gt;
dart:io-patch/socket_patch.dart 781                                                                                                                                           _NativeSocket.issueReadEvent.issue
dart:async/schedule_microtask.dart 41                                                                                                                                         _microtaskLoop
dart:async/schedule_microtask.dart 50                                                                                                                                         _startMicrotaskLoop
dart:isolate-patch/isolate_patch.dart 96                                                                                                                                      _runPendingImmediateCallback
dart:isolate-patch/isolate_patch.dart 149                                                                                                                                     _RawReceivePortImpl._handleMessage
===== asynchronous gap ===========================
dart:async/zone.dart 1073                                                                                                                                                     _CustomZone.registerUnaryCallback
dart:async-patch/async_patch.dart 27                                                                                                                                          _asyncThenWrapperHelper
package:flutter_driver/src/driver.dart                                                                                                                                        FlutterDriver._sendCommand
package:flutter_driver/src/driver.dart 265:11                                                                                                                                 FlutterDriver.tap.&lt;async&gt;
dart:async/future.dart 184                                                                                                                                                    Future.Future.microtask.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1146                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1150                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
dart:async/schedule_microtask.dart 41                                                                                                                                         _microtaskLoop
dart:async/schedule_microtask.dart 50                                                                                                                                         _startMicrotaskLoop
dart:isolate-patch/timer_impl.dart 394                                                                                                                                        _Timer._runTimers
dart:isolate-patch/timer_impl.dart 414                                                                                                                                        _Timer._handleMessage
dart:isolate-patch/isolate_patch.dart 148                                                                                                                                     _RawReceivePortImpl._handleMessage
===== asynchronous gap ===========================
dart:async/zone.dart 1061                                                                                                                                                     _CustomZone.registerCallback
dart:async/zone.dart 949                                                                                                                                                      _CustomZone.bindCallback
dart:async/schedule_microtask.dart 148                                                                                                                                        scheduleMicrotask
dart:async/future.dart 182                                                                                                                                                    Future.Future.microtask
package:flutter_driver/src/driver.dart                                                                                                                                        FlutterDriver.tap
/var/netboot/workspace/4a2ad6d25053194e375b3d74e416f05f_863445_69759/google3/third_party/dart/flutter/examples/gallery/flutter/test_driver/transitions_perf_test.dart 160:26  main.&lt;fn&gt;.&lt;fn&gt;.&lt;async&gt;.&lt;fn&gt;.&lt;async&gt;
dart:async-patch/async_patch.dart 27                                                                                                                                          _asyncThenWrapperHelper.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/future_impl.dart 131                                                                                                                                               _FutureListener.handleValue
dart:async/future_impl.dart 637                                                                                                                                               _Future._propagateToListeners.handleValueCallback
dart:async/future_impl.dart 667                                                                                                                                               _Future._propagateToListeners
dart:async/future_impl.dart 467                                                                                                                                               _Future._complete
dart:async/future.dart 268                                                                                                                                                    Future.Future.delayed.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1146                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1150                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
dart:async-patch/timer_patch.dart 16                                                                                                                                          Timer._createTimer.&lt;fn&gt;
dart:isolate-patch/timer_impl.dart 385                                                                                                                                        _Timer._runTimers
dart:isolate-patch/timer_impl.dart 414                                                                                                                                        _Timer._handleMessage
dart:isolate-patch/isolate_patch.dart 148                                                                                                                                     _RawReceivePortImpl._handleMessage
===== asynchronous gap ===========================
dart:async/zone.dart 1073                                                                                                                                                     _CustomZone.registerUnaryCallback
dart:async-patch/async_patch.dart 27                                                                                                                                          _asyncThenWrapperHelper
/var/netboot/workspace/4a2ad6d25053194e375b3d74e416f05f_863445_69759/google3/third_party/dart/flutter/examples/gallery/flutter/test_driver/transitions_perf_test.dart         main.&lt;fn&gt;.&lt;fn&gt;.&lt;async&gt;.&lt;fn&gt;
package:flutter_driver/src/driver.dart 394:17                                                                                                                                 FlutterDriver.traceAction.&lt;async&gt;
dart:async-patch/async_patch.dart 27                                                                                                                                          _asyncThenWrapperHelper.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/future_impl.dart 131                                                                                                                                               _FutureListener.handleValue
dart:async/future_impl.dart 637                                                                                                                                               _Future._propagateToListeners.handleValueCallback
dart:async/future_impl.dart 667                                                                                                                                               _Future._propagateToListeners
dart:async/future_impl.dart 467                                                                                                                                               _Future._complete
dart:async/future_impl.dart 52                                                                                                                                                _SyncCompleter.complete
package:flutter_driver/src/driver.dart 358:7                                                                                                                                  FlutterDriver.startTracing.&lt;async&gt;
dart:async-patch/async_patch.dart 27                                                                                                                                          _asyncThenWrapperHelper.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/future_impl.dart 131                                                                                                                                               _FutureListener.handleValue
dart:async/future_impl.dart 637                                                                                                                                               _Future._propagateToListeners.handleValueCallback
dart:async/future_impl.dart 667                                                                                                                                               _Future._propagateToListeners
dart:async/future_impl.dart 467                                                                                                                                               _Future._complete
dart:async/future_impl.dart 52                                                                                                                                                _SyncCompleter.complete
package:json_rpc_2/src/client.dart 174:25                                                                                                                                     Client._handleSingleResponse
package:json_rpc_2/src/client.dart 164:7                                                                                                                                      Client._handleResponse
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
package:json_rpc_2/src/peer.dart 91:36                                                                                                                                        Peer.listen.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_pipe.dart 144                                                                                                                                               _ForwardingStreamSubscription._add
dart:async/stream_pipe.dart 108                                                                                                                                               _ForwardingStream._handleData
dart:async/stream_pipe.dart 176                                                                                                                                               _ForwardingStreamSubscription._handleData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_pipe.dart 144                                                                                                                                               _ForwardingStreamSubscription._add
dart:async/stream_pipe.dart 244                                                                                                                                               _MapStream._handleData
dart:async/stream_pipe.dart 176                                                                                                                                               _ForwardingStreamSubscription._handleData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_pipe.dart 144                                                                                                                                               _ForwardingStreamSubscription._add
dart:async/stream_pipe.dart 108                                                                                                                                               _ForwardingStream._handleData
dart:async/stream_pipe.dart 176                                                                                                                                               _ForwardingStreamSubscription._handleData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:io/websocket_impl.dart 1111                                                                                                                                              _WebSocketImpl._WebSocketImpl._fromSocket.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_transformers.dart 67                                                                                                                                        _SinkTransformerStreamSubscription._add
dart:async/stream_transformers.dart 14                                                                                                                                        _EventSinkWrapper.add
dart:io/websocket_impl.dart 333                                                                                                                                               _WebSocketProtocolTransformer._messageFrameEnd
dart:io/websocket_impl.dart 228                                                                                                                                               _WebSocketProtocolTransformer.add
dart:async/stream_transformers.dart 119                                                                                                                                       _SinkTransformerStreamSubscription._handleData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:io-patch/socket_patch.dart 1680                                                                                                                                          _Socket._onData
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1162                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:io-patch/socket_patch.dart 1247                                                                                                                                          _RawSocket._RawSocket.&lt;fn&gt;
dart:io-patch/socket_patch.dart 781                                                                                                                                           _NativeSocket.issueReadEvent.issue
dart:async/schedule_microtask.dart 41                                                                                                                                         _microtaskLoop
dart:async/schedule_microtask.dart 50                                                                                                                                         _startMicrotaskLoop
dart:isolate-patch/isolate_patch.dart 96                                                                                                                                      _runPendingImmediateCallback
dart:isolate-patch/isolate_patch.dart 149                                                                                                                                     _RawReceivePortImpl._handleMessage
===== asynchronous gap ===========================
dart:async/zone.dart 1073                                                                                                                                                     _CustomZone.registerUnaryCallback
dart:async-patch/async_patch.dart 27                                                                                                                                          _asyncThenWrapperHelper
package:flutter_driver/src/driver.dart                                                                                                                                        FlutterDriver.traceAction
/var/netboot/workspace/4a2ad6d25053194e375b3d74e416f05f_863445_69759/google3/third_party/dart/flutter/examples/gallery/flutter/test_driver/transitions_perf_test.dart 143:40  main.&lt;fn&gt;.&lt;fn&gt;.&lt;async&gt;
dart:async/future.dart 184                                                                                                                                                    Future.Future.microtask.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1146                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1150                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
dart:async/schedule_microtask.dart 41                                                                                                                                         _microtaskLoop
dart:async/schedule_microtask.dart 50                                                                                                                                         _startMicrotaskLoop
dart:isolate-patch/timer_impl.dart 394                                                                                                                                        _Timer._runTimers
dart:isolate-patch/timer_impl.dart 414                                                                                                                                        _Timer._handleMessage
dart:isolate-patch/isolate_patch.dart 148                                                                                                                                     _RawReceivePortImpl._handleMessage
===== asynchronous gap ===========================
dart:async/zone.dart 1061                                                                                                                                                     _CustomZone.registerCallback
dart:async/zone.dart 949                                                                                                                                                      _CustomZone.bindCallback
dart:async/schedule_microtask.dart 148                                                                                                                                        scheduleMicrotask
dart:async/future.dart 182                                                                                                                                                    Future.Future.microtask
/var/netboot/workspace/4a2ad6d25053194e375b3d74e416f05f_863445_69759/google3/third_party/dart/flutter/examples/gallery/flutter/test_driver/transitions_perf_test.dart         main.&lt;fn&gt;.&lt;fn&gt;
package:test/src/backend/declarer.dart 114:19                                                                                                                                 Declarer.test.&lt;fn&gt;.&lt;async&gt;.&lt;fn&gt;.&lt;async&gt;
dart:async-patch/async_patch.dart 27                                                                                                                                          _asyncThenWrapperHelper.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/future_impl.dart 131                                                                                                                                               _FutureListener.handleValue
dart:async/future_impl.dart 637                                                                                                                                               _Future._propagateToListeners.handleValueCallback
dart:async/future_impl.dart 667                                                                                                                                               _Future._propagateToListeners
dart:async/future_impl.dart 467                                                                                                                                               _Future._complete
dart:async/future_impl.dart 52                                                                                                                                                _SyncCompleter.complete
package:test/src/backend/declarer.dart 198:3                                                                                                                                  Declarer._runSetUps.&lt;async&gt;
dart:async-patch/async_patch.dart 27                                                                                                                                          _asyncThenWrapperHelper.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/future_impl.dart 131                                                                                                                                               _FutureListener.handleValue
dart:async/future_impl.dart 637                                                                                                                                               _Future._propagateToListeners.handleValueCallback
dart:async/future_impl.dart 667                                                                                                                                               _Future._propagateToListeners
dart:async/future_impl.dart 467                                                                                                                                               _Future._complete
dart:async/future.dart 454                                                                                                                                                    Future.doWhile.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/zone.dart 961                                                                                                                                                      _CustomZone.bindUnaryCallback.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 107:26                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 107:14                                                                                                                  StackZoneSpecification._registerUnaryCallback.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/future_impl.dart 131                                                                                                                                               _FutureListener.handleValue
dart:async/future_impl.dart 637                                                                                                                                               _Future._propagateToListeners.handleValueCallback
dart:async/future_impl.dart 667                                                                                                                                               _Future._propagateToListeners
dart:async/future_impl.dart 477                                                                                                                                               _Future._completeWithValue
dart:async/future_impl.dart 528                                                                                                                                               _Future._asyncComplete.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1150                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
dart:async/schedule_microtask.dart 41                                                                                                                                         _microtaskLoop
dart:async/schedule_microtask.dart 50                                                                                                                                         _startMicrotaskLoop
dart:isolate-patch/timer_impl.dart 394                                                                                                                                        _Timer._runTimers
dart:isolate-patch/timer_impl.dart 414                                                                                                                                        _Timer._handleMessage
dart:isolate-patch/isolate_patch.dart 148                                                                                                                                     _RawReceivePortImpl._handleMessage
===== asynchronous gap ===========================
dart:async/zone.dart 1073                                                                                                                                                     _CustomZone.registerUnaryCallback
dart:async-patch/async_patch.dart 27                                                                                                                                          _asyncThenWrapperHelper
package:test/src/backend/declarer.dart                                                                                                                                        Declarer.test.&lt;fn&gt;.&lt;async&gt;.&lt;fn&gt;
package:test/src/backend/invoker.dart 188:17                                                                                                                                  Invoker.waitForOutstandingCallbacks.&lt;fn&gt;.&lt;fn&gt;.&lt;async&gt;
dart:async/future.dart 184                                                                                                                                                    Future.Future.microtask.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1146                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1150                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
dart:async/schedule_microtask.dart 41                                                                                                                                         _microtaskLoop
dart:async/schedule_microtask.dart 50                                                                                                                                         _startMicrotaskLoop
dart:isolate-patch/timer_impl.dart 394                                                                                                                                        _Timer._runTimers
dart:isolate-patch/timer_impl.dart 414                                                                                                                                        _Timer._handleMessage
dart:isolate-patch/isolate_patch.dart 148                                                                                                                                     _RawReceivePortImpl._handleMessage
===== asynchronous gap ===========================
dart:async/zone.dart 1061                                                                                                                                                     _CustomZone.registerCallback
dart:async/zone.dart 949                                                                                                                                                      _CustomZone.bindCallback
dart:async/schedule_microtask.dart 148                                                                                                                                        scheduleMicrotask
dart:async/future.dart 182                                                                                                                                                    Future.Future.microtask
package:test/src/backend/invoker.dart                                                                                                                                         Invoker.waitForOutstandingCallbacks.&lt;fn&gt;.&lt;fn&gt;
dart:async/zone.dart 1150                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 1501                                                                                                                                                     runZoned
package:test/src/backend/invoker.dart 185:7                                                                                                                                   Invoker.waitForOutstandingCallbacks.&lt;fn&gt;
dart:async/zone.dart 1150                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 1503                                                                                                                                                     runZoned
package:test/src/backend/invoker.dart 184:5                                                                                                                                   Invoker.waitForOutstandingCallbacks
package:test/src/backend/declarer.dart 112:29                                                                                                                                 Declarer.test.&lt;fn&gt;.&lt;async&gt;
dart:async/future.dart 184                                                                                                                                                    Future.Future.microtask.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1146                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1150                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
dart:async/schedule_microtask.dart 41                                                                                                                                         _microtaskLoop
dart:async/schedule_microtask.dart 50                                                                                                                                         _startMicrotaskLoop
dart:isolate-patch/timer_impl.dart 394                                                                                                                                        _Timer._runTimers
dart:isolate-patch/timer_impl.dart 414                                                                                                                                        _Timer._handleMessage
dart:isolate-patch/isolate_patch.dart 148                                                                                                                                     _RawReceivePortImpl._handleMessage
===== asynchronous gap ===========================
dart:async/zone.dart 1061                                                                                                                                                     _CustomZone.registerCallback
dart:async/zone.dart 949                                                                                                                                                      _CustomZone.bindCallback
dart:async/schedule_microtask.dart 148                                                                                                                                        scheduleMicrotask
dart:async/future.dart 182                                                                                                                                                    Future.Future.microtask
package:test/src/backend/declarer.dart                                                                                                                                        Declarer.test.&lt;fn&gt;
dart:async/future.dart 158                                                                                                                                                    Future.Future.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1146                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1150                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
dart:async-patch/timer_patch.dart 16                                                                                                                                          Timer._createTimer.&lt;fn&gt;
dart:isolate-patch/timer_impl.dart 385                                                                                                                                        _Timer._runTimers
dart:isolate-patch/timer_impl.dart 414                                                                                                                                        _Timer._handleMessage
dart:isolate-patch/isolate_patch.dart 148                                                                                                                                     _RawReceivePortImpl._handleMessage
===== asynchronous gap ===========================
dart:async/zone.dart 1061                                                                                                                                                     _CustomZone.registerCallback
dart:async/zone.dart 949                                                                                                                                                      _CustomZone.bindCallback
dart:async/timer.dart 53                                                                                                                                                      Timer.Timer
dart:async/timer.dart 92                                                                                                                                                      Timer.run
dart:async/future.dart 156                                                                                                                                                    Future.Future
package:test/src/backend/invoker.dart 309:13                                                                                                                                  Invoker._onRun.&lt;fn&gt;.&lt;fn&gt;.&lt;async&gt;
dart:async/future.dart 184                                                                                                                                                    Future.Future.microtask.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1146                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
package:stack_trace/src/stack_zone_specification.dart 185:15                                                                                                                  StackZoneSpecification._run
package:stack_trace/src/stack_zone_specification.dart 97:48                                                                                                                   StackZoneSpecification._registerCallback.&lt;fn&gt;
dart:async/zone.dart 1150                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 951                                                                                                                                                      _CustomZone.bindCallback.&lt;fn&gt;
dart:async/schedule_microtask.dart 41                                                                                                                                         _microtaskLoop
dart:async/schedule_microtask.dart 50                                                                                                                                         _startMicrotaskLoop
dart:isolate-patch/isolate_patch.dart 96                                                                                                                                      _runPendingImmediateCallback
dart:isolate-patch/isolate_patch.dart 149                                                                                                                                     _RawReceivePortImpl._handleMessage
===== asynchronous gap ===========================
dart:async/zone.dart 1061                                                                                                                                                     _CustomZone.registerCallback
dart:async/zone.dart 949                                                                                                                                                      _CustomZone.bindCallback
dart:async/schedule_microtask.dart 148                                                                                                                                        scheduleMicrotask
dart:async/future.dart 182                                                                                                                                                    Future.Future.microtask
package:test/src/backend/invoker.dart                                                                                                                                         Invoker._onRun.&lt;fn&gt;.&lt;fn&gt;
dart:async/zone.dart 1150                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 924                                                                                                                                                      _CustomZone.runGuarded
dart:async/zone.dart 1501                                                                                                                                                     runZoned
package:test/src/utils.dart 202:12                                                                                                                                            runZonedWithValues.&lt;fn&gt;
dart:async/zone.dart 1150                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 1503                                                                                                                                                     runZoned
package:test/src/utils.dart 201:10                                                                                                                                            runZonedWithValues
package:test/src/backend/invoker.dart 296:7                                                                                                                                   Invoker._onRun.&lt;fn&gt;
package:stack_trace/src/chain.dart 92:24                                                                                                                                      Chain.capture.&lt;fn&gt;
dart:async/zone.dart 1150                                                                                                                                                     _rootRun
dart:async/zone.dart 1026                                                                                                                                                     _CustomZone.run
dart:async/zone.dart 1503                                                                                                                                                     runZoned
package:stack_trace/src/chain.dart 90:12                                                                                                                                      Chain.capture
package:test/src/backend/invoker.dart 295:11                                                                                                                                  Invoker._onRun
package:test/src/backend/live_test_controller.dart 189:11                                                                                                                     LiveTestController._run
package:test/src/backend/live_test_controller.dart 40:31                                                                                                                      _LiveTest.run
package:test/src/runner/remote_listener.dart 197:14                                                                                                                           RemoteListener._runLiveTest
package:test/src/runner/remote_listener.dart 151:7                                                                                                                            RemoteListener._serializeTest.&lt;fn&gt;
dart:async/zone.dart 1158                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:async/zone.dart 1162                                                                                                                                                     _rootRunUnary
dart:async/zone.dart 1037                                                                                                                                                     _CustomZone.runUnary
dart:async/zone.dart 932                                                                                                                                                      _CustomZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:async/stream_controller.dart 868                                                                                                                                         _StreamSinkWrapper.add
package:stream_channel/src/guarantee_channel.dart 120:12                                                                                                                      _GuaranteeSink.add
package:stream_channel/src/multi_channel.dart 137:31                                                                                                                          _MultiChannel._MultiChannel.&lt;fn&gt;
dart:async/zone.dart 1338                                                                                                                                                     _RootZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:async/zone.dart 1338                                                                                                                                                     _RootZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:async/stream_controller.dart 868                                                                                                                                         _StreamSinkWrapper.add
dart:async/zone.dart 1338                                                                                                                                                     _RootZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:async/zone.dart 1338                                                                                                                                                     _RootZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:async/stream_controller.dart 868                                                                                                                                         _StreamSinkWrapper.add
dart:async/zone.dart 1338                                                                                                                                                     _RootZone.runUnaryGuarded
dart:async/stream_impl.dart 331                                                                                                                                               _BufferingStreamSubscription._sendData
dart:async/stream_impl.dart 258                                                                                                                                               _BufferingStreamSubscription._add
dart:async/stream_controller.dart 768                                                                                                                                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
dart:async/stream_controller.dart 635                                                                                                                                         _StreamController._add
dart:async/stream_controller.dart 581                                                                                                                                         _StreamController.add
dart:isolate-patch/isolate_patch.dart 148                                                                                                                                     _RawReceivePortImpl._handleMessage
</code></pre></div>
<p dir="auto">I'm not sure if this is an artifact of how we're using <code class="notranslate">test</code>, or if we're printing this stack trace ourselves.</p>
<p dir="auto">Here's an example:</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="00:06 +0 -1: end-to-end test tap on the floating action button; verify counter                     
  DriverError: Failed to fulfill WaitFor due to remote error
  Original error: JSON-RPC error -32000: Server error
  Original stack trace:
  package:json_rpc_2/src/client.dart 96:56                      Client.sendRequest
  package:json_rpc_2/src/peer.dart 69:15                        Peer.sendRequest
  package:vm_service_client/src/scope.dart 51:23                Scope.sendRequest.&lt;async&gt;
  dart:async/future.dart 144                                    Future.Future.microtask.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 946                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 950                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  dart:async/schedule_microtask.dart 41                         _microtaskLoop
  dart:async/schedule_microtask.dart 50                         _startMicrotaskLoop
  dart:isolate-patch/isolate_patch.dart 96                      _runPendingImmediateCallback
  dart:isolate-patch/isolate_patch.dart 149                     _RawReceivePortImpl._handleMessage
  ===== asynchronous gap ===========================
  dart:async/zone.dart 861                                      _CustomZone.registerCallback
  dart:async/zone.dart 749                                      _CustomZone.bindCallback
  dart:async/schedule_microtask.dart 148                        scheduleMicrotask
  dart:async/future.dart 142                                    Future.Future.microtask
  package:vm_service_client/src/scope.dart                      Scope.sendRequest
  package:vm_service_client/src/isolate.dart 344:19             VMIsolateRef.invokeExtension
  package:flutter_driver/src/driver.dart 196:32                 FlutterDriver._sendCommand.&lt;async&gt;
  dart:async/future.dart 144                                    Future.Future.microtask.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 946                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 950                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  dart:async/schedule_microtask.dart 41                         _microtaskLoop
  dart:async/schedule_microtask.dart 50                         _startMicrotaskLoop
  dart:isolate-patch/isolate_patch.dart 96                      _runPendingImmediateCallback
  dart:isolate-patch/isolate_patch.dart 149                     _RawReceivePortImpl._handleMessage
  ===== asynchronous gap ===========================
  dart:async/zone.dart 861                                      _CustomZone.registerCallback
  dart:async/zone.dart 749                                      _CustomZone.bindCallback
  dart:async/schedule_microtask.dart 148                        scheduleMicrotask
  dart:async/future.dart 142                                    Future.Future.microtask
  package:flutter_driver/src/driver.dart                        FlutterDriver._sendCommand
  package:flutter_driver/src/driver.dart 219:11                 FlutterDriver.waitFor.&lt;async&gt;
  dart:async/future.dart 144                                    Future.Future.microtask.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 946                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 950                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  dart:async/schedule_microtask.dart 41                         _microtaskLoop
  dart:async/schedule_microtask.dart 50                         _startMicrotaskLoop
  dart:isolate-patch/isolate_patch.dart 96                      _runPendingImmediateCallback
  dart:isolate-patch/isolate_patch.dart 149                     _RawReceivePortImpl._handleMessage
  ===== asynchronous gap ===========================
  dart:async/zone.dart 861                                      _CustomZone.registerCallback
  dart:async/zone.dart 749                                      _CustomZone.bindCallback
  dart:async/schedule_microtask.dart 148                        scheduleMicrotask
  dart:async/future.dart 142                                    Future.Future.microtask
  package:flutter_driver/src/driver.dart                        FlutterDriver.waitFor
  test_driver/main_test.dart 35:20                              main.&lt;fn&gt;.&lt;fn&gt;.&lt;async&gt;
  dart:async-patch/async_patch.dart 27                          _asyncThenWrapperHelper.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/future_impl.dart 131                               _FutureListener.handleValue
  dart:async/future_impl.dart 637                               _Future._propagateToListeners.handleValueCallback
  dart:async/future_impl.dart 667                               _Future._propagateToListeners
  dart:async/future_impl.dart 467                               _Future._complete
  dart:async/future_impl.dart 52                                _SyncCompleter.complete
  package:flutter_driver/src/driver.dart 214:5                  FlutterDriver.tap.&lt;async&gt;
  dart:async-patch/async_patch.dart 27                          _asyncThenWrapperHelper.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/future_impl.dart 131                               _FutureListener.handleValue
  dart:async/future_impl.dart 637                               _Future._propagateToListeners.handleValueCallback
  dart:async/future_impl.dart 667                               _Future._propagateToListeners
  dart:async/future_impl.dart 467                               _Future._complete
  dart:async/future_impl.dart 52                                _SyncCompleter.complete
  package:flutter_driver/src/driver.dart 196:7                  FlutterDriver._sendCommand.&lt;async&gt;
  dart:async-patch/async_patch.dart 27                          _asyncThenWrapperHelper.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/future_impl.dart 131                               _FutureListener.handleValue
  dart:async/future_impl.dart 637                               _Future._propagateToListeners.handleValueCallback
  dart:async/future_impl.dart 667                               _Future._propagateToListeners
  dart:async/future_impl.dart 467                               _Future._complete
  dart:async/future_impl.dart 52                                _SyncCompleter.complete
  package:vm_service_client/src/scope.dart 51:5                 Scope.sendRequest.&lt;async&gt;
  dart:async-patch/async_patch.dart 27                          _asyncThenWrapperHelper.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/future_impl.dart 131                               _FutureListener.handleValue
  dart:async/future_impl.dart 637                               _Future._propagateToListeners.handleValueCallback
  dart:async/future_impl.dart 667                               _Future._propagateToListeners
  dart:async/future_impl.dart 467                               _Future._complete
  dart:async/future_impl.dart 52                                _SyncCompleter.complete
  package:json_rpc_2/src/client.dart 175:25                     Client._handleSingleResponse
  package:json_rpc_2/src/client.dart 165:7                      Client._handleResponse
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/zone.dart 732                                      _CustomZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_controller.dart 768                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
  dart:async/stream_controller.dart 635                         _StreamController._add
  dart:async/stream_controller.dart 581                         _StreamController.add
  package:json_rpc_2/src/peer.dart 92:36                        Peer.listen.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/zone.dart 732                                      _CustomZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_pipe.dart 144                               _ForwardingStreamSubscription._add
  dart:async/stream_pipe.dart 244                               _MapStream._handleData
  dart:async/stream_pipe.dart 176                               _ForwardingStreamSubscription._handleData
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/zone.dart 732                                      _CustomZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_pipe.dart 144                               _ForwardingStreamSubscription._add
  dart:async/stream_pipe.dart 244                               _MapStream._handleData
  dart:async/stream_pipe.dart 176                               _ForwardingStreamSubscription._handleData
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/zone.dart 732                                      _CustomZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_pipe.dart 144                               _ForwardingStreamSubscription._add
  dart:async/stream_pipe.dart 108                               _ForwardingStream._handleData
  dart:async/stream_pipe.dart 176                               _ForwardingStreamSubscription._handleData
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/zone.dart 732                                      _CustomZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_controller.dart 768                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
  dart:async/stream_controller.dart 635                         _StreamController._add
  dart:async/stream_controller.dart 581                         _StreamController.add
  dart:io/websocket_impl.dart 1105                              _WebSocketImpl._WebSocketImpl._fromSocket.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/zone.dart 732                                      _CustomZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_transformers.dart 67                        _SinkTransformerStreamSubscription._add
  dart:async/stream_transformers.dart 14                        _EventSinkWrapper.add
  dart:io/websocket_impl.dart 328                               _WebSocketProtocolTransformer._messageFrameEnd
  dart:io/websocket_impl.dart 223                               _WebSocketProtocolTransformer.add
  dart:async/stream_transformers.dart 119                       _SinkTransformerStreamSubscription._handleData
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/zone.dart 732                                      _CustomZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_controller.dart 768                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
  dart:async/stream_controller.dart 635                         _StreamController._add
  dart:async/stream_controller.dart 581                         _StreamController.add
  dart:io-patch/socket_patch.dart 1659                          _Socket._onData
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 962                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/zone.dart 732                                      _CustomZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_controller.dart 768                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
  dart:async/stream_controller.dart 635                         _StreamController._add
  dart:async/stream_controller.dart 581                         _StreamController.add
  dart:io-patch/socket_patch.dart 1226                          _RawSocket._RawSocket.&lt;fn&gt;
  dart:io-patch/socket_patch.dart 760                           _NativeSocket.issueReadEvent.issue
  dart:async/schedule_microtask.dart 41                         _microtaskLoop
  dart:async/schedule_microtask.dart 50                         _startMicrotaskLoop
  dart:isolate-patch/isolate_patch.dart 96                      _runPendingImmediateCallback
  dart:isolate-patch/isolate_patch.dart 149                     _RawReceivePortImpl._handleMessage
  ===== asynchronous gap ===========================
  dart:async/zone.dart 873                                      _CustomZone.registerUnaryCallback
  dart:async-patch/async_patch.dart 27                          _asyncThenWrapperHelper
  test_driver/main_test.dart                                    main.&lt;fn&gt;.&lt;fn&gt;
  package:test/src/backend/declarer.dart 88:19                  Declarer.test.&lt;fn&gt;.&lt;async&gt;.&lt;fn&gt;.&lt;async&gt;
  dart:async-patch/async_patch.dart 27                          _asyncThenWrapperHelper.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/future_impl.dart 131                               _FutureListener.handleValue
  dart:async/future_impl.dart 637                               _Future._propagateToListeners.handleValueCallback
  dart:async/future_impl.dart 667                               _Future._propagateToListeners
  dart:async/future_impl.dart 467                               _Future._complete
  dart:async/future_impl.dart 52                                _SyncCompleter.complete
  package:test/src/backend/declarer.dart 167:3                  Declarer._runSetUps.&lt;async&gt;
  dart:async-patch/async_patch.dart 27                          _asyncThenWrapperHelper.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/future_impl.dart 131                               _FutureListener.handleValue
  dart:async/future_impl.dart 637                               _Future._propagateToListeners.handleValueCallback
  dart:async/future_impl.dart 667                               _Future._propagateToListeners
  dart:async/future_impl.dart 467                               _Future._complete
  dart:async/future.dart 390                                    Future.doWhile.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/zone.dart 732                                      _CustomZone.runUnaryGuarded
  dart:async/zone.dart 761                                      _CustomZone.bindUnaryCallback.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/future_impl.dart 131                               _FutureListener.handleValue
  dart:async/future_impl.dart 637                               _Future._propagateToListeners.handleValueCallback
  dart:async/future_impl.dart 667                               _Future._propagateToListeners
  dart:async/future_impl.dart 477                               _Future._completeWithValue
  dart:async/future_impl.dart 528                               _Future._asyncComplete.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 950                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  dart:async/schedule_microtask.dart 41                         _microtaskLoop
  dart:async/schedule_microtask.dart 50                         _startMicrotaskLoop
  dart:isolate-patch/timer_impl.dart 394                        _Timer._runTimers
  dart:isolate-patch/timer_impl.dart 414                        _Timer._handleMessage
  dart:isolate-patch/isolate_patch.dart 148                     _RawReceivePortImpl._handleMessage
  ===== asynchronous gap ===========================
  dart:async/zone.dart 873                                      _CustomZone.registerUnaryCallback
  dart:async-patch/async_patch.dart 27                          _asyncThenWrapperHelper
  package:test/src/backend/declarer.dart                        Declarer.test.&lt;fn&gt;.&lt;async&gt;.&lt;fn&gt;
  package:test/src/backend/invoker.dart 185:17                  Invoker.waitForOutstandingCallbacks.&lt;fn&gt;.&lt;fn&gt;.&lt;async&gt;
  dart:async/future.dart 144                                    Future.Future.microtask.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 946                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 950                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  dart:async/schedule_microtask.dart 41                         _microtaskLoop
  dart:async/schedule_microtask.dart 50                         _startMicrotaskLoop
  dart:isolate-patch/timer_impl.dart 394                        _Timer._runTimers
  dart:isolate-patch/timer_impl.dart 414                        _Timer._handleMessage
  dart:isolate-patch/isolate_patch.dart 148                     _RawReceivePortImpl._handleMessage
  ===== asynchronous gap ===========================
  dart:async/zone.dart 861                                      _CustomZone.registerCallback
  dart:async/zone.dart 749                                      _CustomZone.bindCallback
  dart:async/schedule_microtask.dart 148                        scheduleMicrotask
  dart:async/future.dart 142                                    Future.Future.microtask
  package:test/src/backend/invoker.dart                         Invoker.waitForOutstandingCallbacks.&lt;fn&gt;.&lt;fn&gt;
  dart:async/zone.dart 950                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 1301                                     runZoned
  package:test/src/backend/invoker.dart 182:7                   Invoker.waitForOutstandingCallbacks.&lt;fn&gt;
  dart:async/zone.dart 950                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 1303                                     runZoned
  package:test/src/backend/invoker.dart 181:5                   Invoker.waitForOutstandingCallbacks
  package:test/src/backend/declarer.dart 86:29                  Declarer.test.&lt;fn&gt;.&lt;async&gt;
  dart:async/future.dart 144                                    Future.Future.microtask.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 946                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 950                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  dart:async/schedule_microtask.dart 41                         _microtaskLoop
  dart:async/schedule_microtask.dart 50                         _startMicrotaskLoop
  dart:isolate-patch/timer_impl.dart 394                        _Timer._runTimers
  dart:isolate-patch/timer_impl.dart 414                        _Timer._handleMessage
  dart:isolate-patch/isolate_patch.dart 148                     _RawReceivePortImpl._handleMessage
  ===== asynchronous gap ===========================
  dart:async/zone.dart 861                                      _CustomZone.registerCallback
  dart:async/zone.dart 749                                      _CustomZone.bindCallback
  dart:async/schedule_microtask.dart 148                        scheduleMicrotask
  dart:async/future.dart 142                                    Future.Future.microtask
  package:test/src/backend/declarer.dart                        Declarer.test.&lt;fn&gt;
  dart:async/future.dart 118                                    Future.Future.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 946                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 950                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  dart:async-patch/timer_patch.dart 16                          Timer._createTimer.&lt;fn&gt;
  dart:isolate-patch/timer_impl.dart 385                        _Timer._runTimers
  dart:isolate-patch/timer_impl.dart 414                        _Timer._handleMessage
  dart:isolate-patch/isolate_patch.dart 148                     _RawReceivePortImpl._handleMessage
  ===== asynchronous gap ===========================
  dart:async/zone.dart 861                                      _CustomZone.registerCallback
  dart:async/zone.dart 749                                      _CustomZone.bindCallback
  dart:async/timer.dart 53                                      Timer.Timer
  dart:async/timer.dart 92                                      Timer.run
  dart:async/future.dart 116                                    Future.Future
  package:test/src/backend/invoker.dart 285:13                  Invoker._onRun.&lt;fn&gt;.&lt;fn&gt;.&lt;async&gt;
  dart:async/future.dart 144                                    Future.Future.microtask.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 946                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 950                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  dart:async/schedule_microtask.dart 41                         _microtaskLoop
  dart:async/schedule_microtask.dart 50                         _startMicrotaskLoop
  dart:isolate-patch/isolate_patch.dart 96                      _runPendingImmediateCallback
  dart:isolate-patch/isolate_patch.dart 149                     _RawReceivePortImpl._handleMessage
  ===== asynchronous gap ===========================
  dart:async/zone.dart 861                                      _CustomZone.registerCallback
  dart:async/zone.dart 749                                      _CustomZone.bindCallback
  dart:async/schedule_microtask.dart 148                        scheduleMicrotask
  dart:async/future.dart 142                                    Future.Future.microtask
  package:test/src/backend/invoker.dart                         Invoker._onRun.&lt;fn&gt;.&lt;fn&gt;
  dart:async/zone.dart 950                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 1301                                     runZoned
  package:test/src/utils.dart 232:12                            runZonedWithValues.&lt;fn&gt;
  dart:async/zone.dart 950                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 1303                                     runZoned
  package:test/src/utils.dart 231:10                            runZonedWithValues
  package:test/src/backend/invoker.dart 272:7                   Invoker._onRun.&lt;fn&gt;
  package:stack_trace/src/chain.dart 88:24                      Chain.capture.&lt;fn&gt;
  dart:async/zone.dart 950                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 1303                                     runZoned
  package:stack_trace/src/chain.dart 86:12                      Chain.capture
  package:test/src/backend/invoker.dart 271:11                  Invoker._onRun
  package:test/src/backend/live_test_controller.dart 187:11     LiveTestController._run
  package:test/src/backend/live_test_controller.dart 39:31      _LiveTest.run
  package:test/src/runner/remote_listener.dart 189:14           RemoteListener._runLiveTest
  package:test/src/runner/remote_listener.dart 148:7            RemoteListener._serializeTest.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/zone.dart 732                                      _CustomZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_controller.dart 768                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
  dart:async/stream_controller.dart 635                         _StreamController._add
  dart:async/stream_controller.dart 581                         _StreamController.add
  dart:async/zone.dart 962                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/zone.dart 732                                      _CustomZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_controller.dart 768                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
  dart:async/stream_controller.dart 635                         _StreamController._add
  dart:async/stream_controller.dart 581                         _StreamController.add
  dart:async/stream_controller.dart 868                         _StreamSinkWrapper.add
  package:stream_channel/src/guarantee_channel.dart 120:12      _GuaranteeSink.add
  package:stream_channel/src/multi_channel.dart 137:31          _MultiChannel._MultiChannel.&lt;fn&gt;
  dart:async/zone.dart 1138                                     _RootZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_controller.dart 768                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
  dart:async/stream_controller.dart 635                         _StreamController._add
  dart:async/stream_controller.dart 581                         _StreamController.add
  dart:async/zone.dart 1138                                     _RootZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_controller.dart 768                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
  dart:async/stream_controller.dart 635                         _StreamController._add
  dart:async/stream_controller.dart 581                         _StreamController.add
  dart:async/stream_controller.dart 868                         _StreamSinkWrapper.add
  dart:async/zone.dart 1138                                     _RootZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_controller.dart 768                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
  dart:async/stream_controller.dart 635                         _StreamController._add
  dart:async/stream_controller.dart 581                         _StreamController.add
  dart:async/zone.dart 1138                                     _RootZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_controller.dart 768                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
  dart:async/stream_controller.dart 635                         _StreamController._add
  dart:async/stream_controller.dart 581                         _StreamController.add
  dart:async/stream_controller.dart 868                         _StreamSinkWrapper.add
  dart:async/zone.dart 1138                                     _RootZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_controller.dart 768                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
  dart:async/stream_controller.dart 635                         _StreamController._add
  dart:async/stream_controller.dart 581                         _StreamController.add
  dart:isolate-patch/isolate_patch.dart 148                     _RawReceivePortImpl._handleMessage


  package:flutter_driver/src/driver.dart 198:7   FlutterDriver._sendCommand.&lt;async&gt;
  dart:async                                     _Completer.completeError
  package:vm_service_client/src/scope.dart 58:3  Scope.sendRequest.&lt;async&gt;
  dart:async                                     _Completer.completeError
  package:json_rpc_2/src/client.dart 177:25      Client._handleSingleResponse
  package:json_rpc_2/src/client.dart 165:7       Client._handleResponse
  dart:async                                     _StreamController.add
  package:json_rpc_2/src/peer.dart 92:36         Peer.listen.&lt;fn&gt;
  ===== asynchronous gap ===========================
  dart:async                                     _Completer.completeError
  package:flutter_driver/src/driver.dart 207:3   FlutterDriver._sendCommand.&lt;async&gt;
  dart:async                                     _Completer.completeError
  package:vm_service_client/src/scope.dart 58:3  Scope.sendRequest.&lt;async&gt;
  dart:async                                     _Completer.completeError
  package:json_rpc_2/src/client.dart 177:25      Client._handleSingleResponse
  package:json_rpc_2/src/client.dart 165:7       Client._handleResponse
  dart:async                                     _StreamController.add
  package:json_rpc_2/src/peer.dart 92:36         Peer.listen.&lt;fn&gt;
  ===== asynchronous gap ===========================
  dart:async                                     _asyncErrorWrapperHelper
  package:flutter_driver/src/driver.dart         FlutterDriver._sendCommand
  package:flutter_driver/src/driver.dart 219:11  FlutterDriver.waitFor.&lt;async&gt;
  ===== asynchronous gap ===========================
  dart:async                                     Future.Future.microtask
  package:flutter_driver/src/driver.dart         FlutterDriver.waitFor
  test_driver/main_test.dart 35:20               main.&lt;fn&gt;.&lt;fn&gt;.&lt;async&gt;
  dart:async                                     _SyncCompleter.complete
  package:flutter_driver/src/driver.dart 214:5   FlutterDriver.tap.&lt;async&gt;
  dart:async                                     _SyncCompleter.complete
  package:flutter_driver/src/driver.dart 196:7   FlutterDriver._sendCommand.&lt;async&gt;
  dart:async                                     _SyncCompleter.complete
  package:vm_service_client/src/scope.dart 51:5  Scope.sendRequest.&lt;async&gt;
  dart:async                                     _SyncCompleter.complete
  package:json_rpc_2/src/client.dart 175:25      Client._handleSingleResponse
  package:json_rpc_2/src/client.dart 165:7       Client._handleResponse
  dart:async                                     _StreamController.add
  package:json_rpc_2/src/peer.dart 92:36         Peer.listen.&lt;fn&gt;
  ===== asynchronous gap ===========================
  dart:async                                     _asyncThenWrapperHelper
  test_driver/main_test.dart                     main.&lt;fn&gt;.&lt;fn&gt;"><pre class="notranslate"><code class="notranslate">00:06 +0 -1: end-to-end test tap on the floating action button; verify counter                     
  DriverError: Failed to fulfill WaitFor due to remote error
  Original error: JSON-RPC error -32000: Server error
  Original stack trace:
  package:json_rpc_2/src/client.dart 96:56                      Client.sendRequest
  package:json_rpc_2/src/peer.dart 69:15                        Peer.sendRequest
  package:vm_service_client/src/scope.dart 51:23                Scope.sendRequest.&lt;async&gt;
  dart:async/future.dart 144                                    Future.Future.microtask.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 946                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 950                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  dart:async/schedule_microtask.dart 41                         _microtaskLoop
  dart:async/schedule_microtask.dart 50                         _startMicrotaskLoop
  dart:isolate-patch/isolate_patch.dart 96                      _runPendingImmediateCallback
  dart:isolate-patch/isolate_patch.dart 149                     _RawReceivePortImpl._handleMessage
  ===== asynchronous gap ===========================
  dart:async/zone.dart 861                                      _CustomZone.registerCallback
  dart:async/zone.dart 749                                      _CustomZone.bindCallback
  dart:async/schedule_microtask.dart 148                        scheduleMicrotask
  dart:async/future.dart 142                                    Future.Future.microtask
  package:vm_service_client/src/scope.dart                      Scope.sendRequest
  package:vm_service_client/src/isolate.dart 344:19             VMIsolateRef.invokeExtension
  package:flutter_driver/src/driver.dart 196:32                 FlutterDriver._sendCommand.&lt;async&gt;
  dart:async/future.dart 144                                    Future.Future.microtask.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 946                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 950                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  dart:async/schedule_microtask.dart 41                         _microtaskLoop
  dart:async/schedule_microtask.dart 50                         _startMicrotaskLoop
  dart:isolate-patch/isolate_patch.dart 96                      _runPendingImmediateCallback
  dart:isolate-patch/isolate_patch.dart 149                     _RawReceivePortImpl._handleMessage
  ===== asynchronous gap ===========================
  dart:async/zone.dart 861                                      _CustomZone.registerCallback
  dart:async/zone.dart 749                                      _CustomZone.bindCallback
  dart:async/schedule_microtask.dart 148                        scheduleMicrotask
  dart:async/future.dart 142                                    Future.Future.microtask
  package:flutter_driver/src/driver.dart                        FlutterDriver._sendCommand
  package:flutter_driver/src/driver.dart 219:11                 FlutterDriver.waitFor.&lt;async&gt;
  dart:async/future.dart 144                                    Future.Future.microtask.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 946                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 950                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  dart:async/schedule_microtask.dart 41                         _microtaskLoop
  dart:async/schedule_microtask.dart 50                         _startMicrotaskLoop
  dart:isolate-patch/isolate_patch.dart 96                      _runPendingImmediateCallback
  dart:isolate-patch/isolate_patch.dart 149                     _RawReceivePortImpl._handleMessage
  ===== asynchronous gap ===========================
  dart:async/zone.dart 861                                      _CustomZone.registerCallback
  dart:async/zone.dart 749                                      _CustomZone.bindCallback
  dart:async/schedule_microtask.dart 148                        scheduleMicrotask
  dart:async/future.dart 142                                    Future.Future.microtask
  package:flutter_driver/src/driver.dart                        FlutterDriver.waitFor
  test_driver/main_test.dart 35:20                              main.&lt;fn&gt;.&lt;fn&gt;.&lt;async&gt;
  dart:async-patch/async_patch.dart 27                          _asyncThenWrapperHelper.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/future_impl.dart 131                               _FutureListener.handleValue
  dart:async/future_impl.dart 637                               _Future._propagateToListeners.handleValueCallback
  dart:async/future_impl.dart 667                               _Future._propagateToListeners
  dart:async/future_impl.dart 467                               _Future._complete
  dart:async/future_impl.dart 52                                _SyncCompleter.complete
  package:flutter_driver/src/driver.dart 214:5                  FlutterDriver.tap.&lt;async&gt;
  dart:async-patch/async_patch.dart 27                          _asyncThenWrapperHelper.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/future_impl.dart 131                               _FutureListener.handleValue
  dart:async/future_impl.dart 637                               _Future._propagateToListeners.handleValueCallback
  dart:async/future_impl.dart 667                               _Future._propagateToListeners
  dart:async/future_impl.dart 467                               _Future._complete
  dart:async/future_impl.dart 52                                _SyncCompleter.complete
  package:flutter_driver/src/driver.dart 196:7                  FlutterDriver._sendCommand.&lt;async&gt;
  dart:async-patch/async_patch.dart 27                          _asyncThenWrapperHelper.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/future_impl.dart 131                               _FutureListener.handleValue
  dart:async/future_impl.dart 637                               _Future._propagateToListeners.handleValueCallback
  dart:async/future_impl.dart 667                               _Future._propagateToListeners
  dart:async/future_impl.dart 467                               _Future._complete
  dart:async/future_impl.dart 52                                _SyncCompleter.complete
  package:vm_service_client/src/scope.dart 51:5                 Scope.sendRequest.&lt;async&gt;
  dart:async-patch/async_patch.dart 27                          _asyncThenWrapperHelper.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/future_impl.dart 131                               _FutureListener.handleValue
  dart:async/future_impl.dart 637                               _Future._propagateToListeners.handleValueCallback
  dart:async/future_impl.dart 667                               _Future._propagateToListeners
  dart:async/future_impl.dart 467                               _Future._complete
  dart:async/future_impl.dart 52                                _SyncCompleter.complete
  package:json_rpc_2/src/client.dart 175:25                     Client._handleSingleResponse
  package:json_rpc_2/src/client.dart 165:7                      Client._handleResponse
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/zone.dart 732                                      _CustomZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_controller.dart 768                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
  dart:async/stream_controller.dart 635                         _StreamController._add
  dart:async/stream_controller.dart 581                         _StreamController.add
  package:json_rpc_2/src/peer.dart 92:36                        Peer.listen.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/zone.dart 732                                      _CustomZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_pipe.dart 144                               _ForwardingStreamSubscription._add
  dart:async/stream_pipe.dart 244                               _MapStream._handleData
  dart:async/stream_pipe.dart 176                               _ForwardingStreamSubscription._handleData
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/zone.dart 732                                      _CustomZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_pipe.dart 144                               _ForwardingStreamSubscription._add
  dart:async/stream_pipe.dart 244                               _MapStream._handleData
  dart:async/stream_pipe.dart 176                               _ForwardingStreamSubscription._handleData
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/zone.dart 732                                      _CustomZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_pipe.dart 144                               _ForwardingStreamSubscription._add
  dart:async/stream_pipe.dart 108                               _ForwardingStream._handleData
  dart:async/stream_pipe.dart 176                               _ForwardingStreamSubscription._handleData
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/zone.dart 732                                      _CustomZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_controller.dart 768                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
  dart:async/stream_controller.dart 635                         _StreamController._add
  dart:async/stream_controller.dart 581                         _StreamController.add
  dart:io/websocket_impl.dart 1105                              _WebSocketImpl._WebSocketImpl._fromSocket.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/zone.dart 732                                      _CustomZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_transformers.dart 67                        _SinkTransformerStreamSubscription._add
  dart:async/stream_transformers.dart 14                        _EventSinkWrapper.add
  dart:io/websocket_impl.dart 328                               _WebSocketProtocolTransformer._messageFrameEnd
  dart:io/websocket_impl.dart 223                               _WebSocketProtocolTransformer.add
  dart:async/stream_transformers.dart 119                       _SinkTransformerStreamSubscription._handleData
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/zone.dart 732                                      _CustomZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_controller.dart 768                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
  dart:async/stream_controller.dart 635                         _StreamController._add
  dart:async/stream_controller.dart 581                         _StreamController.add
  dart:io-patch/socket_patch.dart 1659                          _Socket._onData
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 962                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/zone.dart 732                                      _CustomZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_controller.dart 768                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
  dart:async/stream_controller.dart 635                         _StreamController._add
  dart:async/stream_controller.dart 581                         _StreamController.add
  dart:io-patch/socket_patch.dart 1226                          _RawSocket._RawSocket.&lt;fn&gt;
  dart:io-patch/socket_patch.dart 760                           _NativeSocket.issueReadEvent.issue
  dart:async/schedule_microtask.dart 41                         _microtaskLoop
  dart:async/schedule_microtask.dart 50                         _startMicrotaskLoop
  dart:isolate-patch/isolate_patch.dart 96                      _runPendingImmediateCallback
  dart:isolate-patch/isolate_patch.dart 149                     _RawReceivePortImpl._handleMessage
  ===== asynchronous gap ===========================
  dart:async/zone.dart 873                                      _CustomZone.registerUnaryCallback
  dart:async-patch/async_patch.dart 27                          _asyncThenWrapperHelper
  test_driver/main_test.dart                                    main.&lt;fn&gt;.&lt;fn&gt;
  package:test/src/backend/declarer.dart 88:19                  Declarer.test.&lt;fn&gt;.&lt;async&gt;.&lt;fn&gt;.&lt;async&gt;
  dart:async-patch/async_patch.dart 27                          _asyncThenWrapperHelper.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/future_impl.dart 131                               _FutureListener.handleValue
  dart:async/future_impl.dart 637                               _Future._propagateToListeners.handleValueCallback
  dart:async/future_impl.dart 667                               _Future._propagateToListeners
  dart:async/future_impl.dart 467                               _Future._complete
  dart:async/future_impl.dart 52                                _SyncCompleter.complete
  package:test/src/backend/declarer.dart 167:3                  Declarer._runSetUps.&lt;async&gt;
  dart:async-patch/async_patch.dart 27                          _asyncThenWrapperHelper.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/future_impl.dart 131                               _FutureListener.handleValue
  dart:async/future_impl.dart 637                               _Future._propagateToListeners.handleValueCallback
  dart:async/future_impl.dart 667                               _Future._propagateToListeners
  dart:async/future_impl.dart 467                               _Future._complete
  dart:async/future.dart 390                                    Future.doWhile.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/zone.dart 732                                      _CustomZone.runUnaryGuarded
  dart:async/zone.dart 761                                      _CustomZone.bindUnaryCallback.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 135:26  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 135:14  StackZoneSpecification.registerUnaryCallback.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/future_impl.dart 131                               _FutureListener.handleValue
  dart:async/future_impl.dart 637                               _Future._propagateToListeners.handleValueCallback
  dart:async/future_impl.dart 667                               _Future._propagateToListeners
  dart:async/future_impl.dart 477                               _Future._completeWithValue
  dart:async/future_impl.dart 528                               _Future._asyncComplete.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 950                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  dart:async/schedule_microtask.dart 41                         _microtaskLoop
  dart:async/schedule_microtask.dart 50                         _startMicrotaskLoop
  dart:isolate-patch/timer_impl.dart 394                        _Timer._runTimers
  dart:isolate-patch/timer_impl.dart 414                        _Timer._handleMessage
  dart:isolate-patch/isolate_patch.dart 148                     _RawReceivePortImpl._handleMessage
  ===== asynchronous gap ===========================
  dart:async/zone.dart 873                                      _CustomZone.registerUnaryCallback
  dart:async-patch/async_patch.dart 27                          _asyncThenWrapperHelper
  package:test/src/backend/declarer.dart                        Declarer.test.&lt;fn&gt;.&lt;async&gt;.&lt;fn&gt;
  package:test/src/backend/invoker.dart 185:17                  Invoker.waitForOutstandingCallbacks.&lt;fn&gt;.&lt;fn&gt;.&lt;async&gt;
  dart:async/future.dart 144                                    Future.Future.microtask.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 946                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 950                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  dart:async/schedule_microtask.dart 41                         _microtaskLoop
  dart:async/schedule_microtask.dart 50                         _startMicrotaskLoop
  dart:isolate-patch/timer_impl.dart 394                        _Timer._runTimers
  dart:isolate-patch/timer_impl.dart 414                        _Timer._handleMessage
  dart:isolate-patch/isolate_patch.dart 148                     _RawReceivePortImpl._handleMessage
  ===== asynchronous gap ===========================
  dart:async/zone.dart 861                                      _CustomZone.registerCallback
  dart:async/zone.dart 749                                      _CustomZone.bindCallback
  dart:async/schedule_microtask.dart 148                        scheduleMicrotask
  dart:async/future.dart 142                                    Future.Future.microtask
  package:test/src/backend/invoker.dart                         Invoker.waitForOutstandingCallbacks.&lt;fn&gt;.&lt;fn&gt;
  dart:async/zone.dart 950                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 1301                                     runZoned
  package:test/src/backend/invoker.dart 182:7                   Invoker.waitForOutstandingCallbacks.&lt;fn&gt;
  dart:async/zone.dart 950                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 1303                                     runZoned
  package:test/src/backend/invoker.dart 181:5                   Invoker.waitForOutstandingCallbacks
  package:test/src/backend/declarer.dart 86:29                  Declarer.test.&lt;fn&gt;.&lt;async&gt;
  dart:async/future.dart 144                                    Future.Future.microtask.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 946                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 950                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  dart:async/schedule_microtask.dart 41                         _microtaskLoop
  dart:async/schedule_microtask.dart 50                         _startMicrotaskLoop
  dart:isolate-patch/timer_impl.dart 394                        _Timer._runTimers
  dart:isolate-patch/timer_impl.dart 414                        _Timer._handleMessage
  dart:isolate-patch/isolate_patch.dart 148                     _RawReceivePortImpl._handleMessage
  ===== asynchronous gap ===========================
  dart:async/zone.dart 861                                      _CustomZone.registerCallback
  dart:async/zone.dart 749                                      _CustomZone.bindCallback
  dart:async/schedule_microtask.dart 148                        scheduleMicrotask
  dart:async/future.dart 142                                    Future.Future.microtask
  package:test/src/backend/declarer.dart                        Declarer.test.&lt;fn&gt;
  dart:async/future.dart 118                                    Future.Future.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 946                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 950                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  dart:async-patch/timer_patch.dart 16                          Timer._createTimer.&lt;fn&gt;
  dart:isolate-patch/timer_impl.dart 385                        _Timer._runTimers
  dart:isolate-patch/timer_impl.dart 414                        _Timer._handleMessage
  dart:isolate-patch/isolate_patch.dart 148                     _RawReceivePortImpl._handleMessage
  ===== asynchronous gap ===========================
  dart:async/zone.dart 861                                      _CustomZone.registerCallback
  dart:async/zone.dart 749                                      _CustomZone.bindCallback
  dart:async/timer.dart 53                                      Timer.Timer
  dart:async/timer.dart 92                                      Timer.run
  dart:async/future.dart 116                                    Future.Future
  package:test/src/backend/invoker.dart 285:13                  Invoker._onRun.&lt;fn&gt;.&lt;fn&gt;.&lt;async&gt;
  dart:async/future.dart 144                                    Future.Future.microtask.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 946                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  package:stack_trace/src/stack_zone_specification.dart 206:15  StackZoneSpecification._run
  package:stack_trace/src/stack_zone_specification.dart 125:48  StackZoneSpecification.registerCallback.&lt;fn&gt;
  dart:async/zone.dart 950                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 751                                      _CustomZone.bindCallback.&lt;fn&gt;
  dart:async/schedule_microtask.dart 41                         _microtaskLoop
  dart:async/schedule_microtask.dart 50                         _startMicrotaskLoop
  dart:isolate-patch/isolate_patch.dart 96                      _runPendingImmediateCallback
  dart:isolate-patch/isolate_patch.dart 149                     _RawReceivePortImpl._handleMessage
  ===== asynchronous gap ===========================
  dart:async/zone.dart 861                                      _CustomZone.registerCallback
  dart:async/zone.dart 749                                      _CustomZone.bindCallback
  dart:async/schedule_microtask.dart 148                        scheduleMicrotask
  dart:async/future.dart 142                                    Future.Future.microtask
  package:test/src/backend/invoker.dart                         Invoker._onRun.&lt;fn&gt;.&lt;fn&gt;
  dart:async/zone.dart 950                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 724                                      _CustomZone.runGuarded
  dart:async/zone.dart 1301                                     runZoned
  package:test/src/utils.dart 232:12                            runZonedWithValues.&lt;fn&gt;
  dart:async/zone.dart 950                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 1303                                     runZoned
  package:test/src/utils.dart 231:10                            runZonedWithValues
  package:test/src/backend/invoker.dart 272:7                   Invoker._onRun.&lt;fn&gt;
  package:stack_trace/src/chain.dart 88:24                      Chain.capture.&lt;fn&gt;
  dart:async/zone.dart 950                                      _rootRun
  dart:async/zone.dart 826                                      _CustomZone.run
  dart:async/zone.dart 1303                                     runZoned
  package:stack_trace/src/chain.dart 86:12                      Chain.capture
  package:test/src/backend/invoker.dart 271:11                  Invoker._onRun
  package:test/src/backend/live_test_controller.dart 187:11     LiveTestController._run
  package:test/src/backend/live_test_controller.dart 39:31      _LiveTest.run
  package:test/src/runner/remote_listener.dart 189:14           RemoteListener._runLiveTest
  package:test/src/runner/remote_listener.dart 148:7            RemoteListener._serializeTest.&lt;fn&gt;
  dart:async/zone.dart 958                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/zone.dart 732                                      _CustomZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_controller.dart 768                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
  dart:async/stream_controller.dart 635                         _StreamController._add
  dart:async/stream_controller.dart 581                         _StreamController.add
  dart:async/zone.dart 962                                      _rootRunUnary
  dart:async/zone.dart 837                                      _CustomZone.runUnary
  dart:async/zone.dart 732                                      _CustomZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_controller.dart 768                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
  dart:async/stream_controller.dart 635                         _StreamController._add
  dart:async/stream_controller.dart 581                         _StreamController.add
  dart:async/stream_controller.dart 868                         _StreamSinkWrapper.add
  package:stream_channel/src/guarantee_channel.dart 120:12      _GuaranteeSink.add
  package:stream_channel/src/multi_channel.dart 137:31          _MultiChannel._MultiChannel.&lt;fn&gt;
  dart:async/zone.dart 1138                                     _RootZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_controller.dart 768                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
  dart:async/stream_controller.dart 635                         _StreamController._add
  dart:async/stream_controller.dart 581                         _StreamController.add
  dart:async/zone.dart 1138                                     _RootZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_controller.dart 768                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
  dart:async/stream_controller.dart 635                         _StreamController._add
  dart:async/stream_controller.dart 581                         _StreamController.add
  dart:async/stream_controller.dart 868                         _StreamSinkWrapper.add
  dart:async/zone.dart 1138                                     _RootZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_controller.dart 768                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
  dart:async/stream_controller.dart 635                         _StreamController._add
  dart:async/stream_controller.dart 581                         _StreamController.add
  dart:async/zone.dart 1138                                     _RootZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_controller.dart 768                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
  dart:async/stream_controller.dart 635                         _StreamController._add
  dart:async/stream_controller.dart 581                         _StreamController.add
  dart:async/stream_controller.dart 868                         _StreamSinkWrapper.add
  dart:async/zone.dart 1138                                     _RootZone.runUnaryGuarded
  dart:async/stream_impl.dart 334                               _BufferingStreamSubscription._sendData
  dart:async/stream_impl.dart 261                               _BufferingStreamSubscription._add
  dart:async/stream_controller.dart 768                         _StreamController&amp;&amp;_SyncStreamControllerDispatch._sendData
  dart:async/stream_controller.dart 635                         _StreamController._add
  dart:async/stream_controller.dart 581                         _StreamController.add
  dart:isolate-patch/isolate_patch.dart 148                     _RawReceivePortImpl._handleMessage


  package:flutter_driver/src/driver.dart 198:7   FlutterDriver._sendCommand.&lt;async&gt;
  dart:async                                     _Completer.completeError
  package:vm_service_client/src/scope.dart 58:3  Scope.sendRequest.&lt;async&gt;
  dart:async                                     _Completer.completeError
  package:json_rpc_2/src/client.dart 177:25      Client._handleSingleResponse
  package:json_rpc_2/src/client.dart 165:7       Client._handleResponse
  dart:async                                     _StreamController.add
  package:json_rpc_2/src/peer.dart 92:36         Peer.listen.&lt;fn&gt;
  ===== asynchronous gap ===========================
  dart:async                                     _Completer.completeError
  package:flutter_driver/src/driver.dart 207:3   FlutterDriver._sendCommand.&lt;async&gt;
  dart:async                                     _Completer.completeError
  package:vm_service_client/src/scope.dart 58:3  Scope.sendRequest.&lt;async&gt;
  dart:async                                     _Completer.completeError
  package:json_rpc_2/src/client.dart 177:25      Client._handleSingleResponse
  package:json_rpc_2/src/client.dart 165:7       Client._handleResponse
  dart:async                                     _StreamController.add
  package:json_rpc_2/src/peer.dart 92:36         Peer.listen.&lt;fn&gt;
  ===== asynchronous gap ===========================
  dart:async                                     _asyncErrorWrapperHelper
  package:flutter_driver/src/driver.dart         FlutterDriver._sendCommand
  package:flutter_driver/src/driver.dart 219:11  FlutterDriver.waitFor.&lt;async&gt;
  ===== asynchronous gap ===========================
  dart:async                                     Future.Future.microtask
  package:flutter_driver/src/driver.dart         FlutterDriver.waitFor
  test_driver/main_test.dart 35:20               main.&lt;fn&gt;.&lt;fn&gt;.&lt;async&gt;
  dart:async                                     _SyncCompleter.complete
  package:flutter_driver/src/driver.dart 214:5   FlutterDriver.tap.&lt;async&gt;
  dart:async                                     _SyncCompleter.complete
  package:flutter_driver/src/driver.dart 196:7   FlutterDriver._sendCommand.&lt;async&gt;
  dart:async                                     _SyncCompleter.complete
  package:vm_service_client/src/scope.dart 51:5  Scope.sendRequest.&lt;async&gt;
  dart:async                                     _SyncCompleter.complete
  package:json_rpc_2/src/client.dart 175:25      Client._handleSingleResponse
  package:json_rpc_2/src/client.dart 165:7       Client._handleResponse
  dart:async                                     _StreamController.add
  package:json_rpc_2/src/peer.dart 92:36         Peer.listen.&lt;fn&gt;
  ===== asynchronous gap ===========================
  dart:async                                     _asyncThenWrapperHelper
  test_driver/main_test.dart                     main.&lt;fn&gt;.&lt;fn&gt;
</code></pre></div>