Flaky WebDriver BiDi infrastructure test in WPT

[OrKoN]

Unexpected Results
------------------
/infrastructure/testdriver/bidi/permissions/set_permission.https.html
  TIMEOUT /infrastructure/testdriver/bidi/permissions/set_permission.https.html - Executor hit external timeout (this may indicate a hang)
  File "/usr/lib/python3.8/threading.py", line 890, in _bootstrap
    self._bootstrap_inner()
  File "/usr/lib/python3.8/threading.py", line 932, in _bootstrap_inner
    self.run()
  File "/usr/lib/python3.8/threading.py", line 870, in run
    self._target(*self._args, **self._kwargs)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 807, in run_func
    self.result = True, self.func(self.protocol, self.url, self.timeout)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 997, in do_testharness
    raw_results = self.run_testdriver(protocol, url, timeout)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 904, in run_testdriver
    test_driver_message = protocol.testdriver.get_next_message(url, self.script_resume,
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 444, in get_next_message
    return self._get_next_message_bidi(url, script_resume, test_window)
  File "/home/test/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py", line 479, in _get_next_message_bidi
    message = self.parent.loop.run_until_complete(self.parent.bidi_script.call_function(
  File "/usr/lib/python3.8/asyncio/base_events.py", line 603, in run_until_complete
    self.run_forever()
  File "/usr/lib/python3.8/asyncio/base_events.py", line 570, in run_forever
    self._run_once()
  File "/usr/lib/python3.8/asyncio/base_events.py", line 1823, in _run_once
    event_list = self._selector.select(timeout)
  File "/usr/lib/python3.8/selectors.py", line 468, in select
    fd_event_list = self._selector.poll(timeout, max_ev)
SUITE-END | took 161s

https://github.com/web-platform-tests/wpt/pull/50290/checks?check_run_id=36217887734

[whimboo]

Did that happen only once or is it reproducible? As it looks like those tests are run with chromedriver.

[OrKoN]

so far I have seen this once

[whimboo]

Once in a while we have those issues and usually we just retry the job.