private void handleProcessExecutionFailure(@NotNull UUID sessionId, Throwable e) {
    final BuilderMessageHandler unregistered = myMessageDispatcher.unregisterBuildMessageHandler(sessionId);
    if (unregistered != null) {
      unregistered.handleFailure(sessionId, CmdlineProtoUtil.createFailure(e.getMessage(), e));
      unregistered.sessionTerminated(sessionId);
    }
  }
private void handleProcessExecutionFailure(@NotNull UUID sessionId, Throwable e)