message: [XLA:Python] Add more logging on CHECK failure.
diff: @@ -672,7 +672,7 @@ PyLocalExecutable::PyLocalExecutable(
  local_replicas_.push_back(replica);
  device_ordinals_.push_back(*device_ordinal);
  }
  - CHECK_GE(local_replicas_.size(), 1);
  + CHECK_GE(local_replicas_.size(), 1) << device_assignment_.ToString();
  }
  StatusOr<std::unique_ptr<PyLocalBuffer>> PyLocalExecutable::ExecuteHelper(
  