println('onInstantiated')
                }

                // Shouldn't be called
                void started($BuildOperationDescriptor.name buildOperation, $OperationStartEvent.name startEvent) {
                    println('onStarted')
                }

                // Shouldn't be called

  }\n    }\n\n    if (actives) {\n      activesData = $(actives).not(this._selector).data(DATA_KEY)\n      if (activesData && activesData._isTransitioning) {\n        return\n      }\n    }\n\n    const startEvent = $.Event(Event.SHOW)\n    $(this._element).trigger(startEvent)\n    if (startEvent.isDefaultPrevented()) {\n      return\n    }\n\n    if (actives) {\n      Collapse._jQueryInterface.call($(actives).not(this._selector), 'hide')\n      if (!activesData) {\n        $(actives).data(DATA_KEY,...

  }\n    }\n\n    if (actives) {\n      activesData = $(actives).not(this._selector).data(DATA_KEY)\n      if (activesData && activesData._isTransitioning) {\n        return\n      }\n    }\n\n    const startEvent = $.Event(Event.SHOW)\n    $(this._element).trigger(startEvent)\n    if (startEvent.isDefaultPrevented()) {\n      return\n    }\n\n    if (actives) {\n      Collapse._jQueryInterface.call($(actives).not(this._selector), 'hide')\n      if (!activesData) {\n        $(actives).data(DATA_KEY,...

            abstract class LoggingListener implements BuildOperationListener, BuildService<BuildServiceParameters.None> {
                void started(BuildOperationDescriptor buildOperation, OperationStartEvent startEvent) { throw new RuntimeException() }
                void progress(OperationIdentifier operationIdentifier, OperationProgressEvent progressEvent) { throw new RuntimeException() }

        given:
        def startEvent1 = new ProgressStartEvent(new OperationIdentifier(-3L), new OperationIdentifier(-4L), tenAm, CATEGORY, "Execute :a", null, null, 0, true, new OperationIdentifier(-3L), BuildOperationCategory.TASK)
        def logEvent1 = event('a message', LogLevel.WARN, startEvent1.buildOperationId)
        def completeEvent1 = new ProgressCompleteEvent(startEvent1.progressOperationId, tenAm, "STATUS", false)

This new event breaks the convention of having a `StartEvent`-`FinishEvent` pair to express progress.
`TaskOutputEvent` is a simple `ProgressEvent`.

==== Changes to the task container behavior

The following deprecated methods on the task container now result in errors:

const fcpEvent=firstContentfulPaintEvents[fcpIndex];if(fcpEvent.start<startEvent.start){fcpIndex++;continue;}
loopStartIndex++;if(fcpIndex<2){continue;}