anchor.diff:      final ForwardedPort forwardedPort = new ForwardedPort.withContext(hostPort,
           devicePort, process);
   
  -    printTrace("Forwarded port $forwardedPort");
  +    printTrace('Forwarded port $forwardedPort');
   
       _forwardedPorts.add(forwardedPort);
   
  
positive.code:         installationResult = result;
  
          if (result != 0) {
            printTrace("Failed to launch the application on device.");
            return <Uri>[null, null];
          }
  
          printTrace("Application launched on the device. Attempting to forward ports.");
          return await Future.wait(<Future<Uri>>[forwardObsUri, forwardDiagUri]);
        }).whenComplete(() {
          observatoryDiscovery.cancel();
  
negative.code:     }
  
      // Step 3: Attempt to install the application on the device.
      final List<String> launchArguments = <String>['--enable-dart-profiling'];
  
      if (debuggingOptions.startPaused)
        launchArguments.add('--start-paused');
  
      if (debuggingOptions.useTestFonts)
        launchArguments.add('--use-test-fonts');
  
      if (debuggingOptions.debuggingEnabled) {
        launchArguments.add('--enable-checked-mode');
  
        // Note: We do NOT need to set the observatory port since this is going to
        // be setup on the device. Let it pick a port automatically. We will check
  