▶ TIMEOUT [expected PASS] /_mozilla/shadow-dom/move-element-with-ua-shadow-tree-crash.html
  │   → Executor hit external timeout (this may indicate a hang)
  │   →   File "/opt/hostedtoolcache/Python/3.11.13/x64/lib/python3.11/threading.py", line 1002, in _bootstrap
  │   →     self._bootstrap_inner()
  │   →   File "/opt/hostedtoolcache/Python/3.11.13/x64/lib/python3.11/threading.py", line 1045, in _bootstrap_inner
  │   →     self.run()
  │   →   File "/opt/hostedtoolcache/Python/3.11.13/x64/lib/python3.11/threading.py", line 982, in run
  │   →     self._target(*self._args, **self._kwargs)
  │   →   File "/home/runner/work/servo/servo/tests/wpt/tests/tools/wptrunner/wptrunner/executors/executorservo.py", line 286, in run_func
  │   →     self.result = (True, self.func(self.protocol, self.url, self.timeout))
  │   →   File "/home/runner/work/servo/servo/tests/wpt/tests/tools/wptrunner/wptrunner/executors/executorservo.py", line 347, in do_crashtest
  │   →     self.proc.wait()
  │   →   File "/home/runner/work/servo/servo/.venv/lib/python3.11/site-packages/mozprocess/processhandler.py", line 978, in wait
  │   →     self.reader.join(timeout=1)
  │   →   File "/home/runner/work/servo/servo/.venv/lib/python3.11/site-packages/mozprocess/processhandler.py", line 1195, in join
  │   →     self.thread.join(timeout=timeout)
  │   →   File "/opt/hostedtoolcache/Python/3.11.13/x64/lib/python3.11/threading.py", line 1123, in join
  │   →     self._wait_for_tstate_lock(timeout=max(timeout, 0))
  │   →   File "/opt/hostedtoolcache/Python/3.11.13/x64/lib/python3.11/threading.py", line 1139, in _wait_for_tstate_lock
  │   →     if lock.acquire(block, timeout):
  │ 
  │ 
  └ (servo:179507): GLib-GObject-WARNING **: 16:03:51.291: ../../../gobject/gsignal.c:2765: instance '0x7fae04153000' has no handler with id '32'