Failure seen on the macOS job on a PR:

https://github.com/python/cpython/pull/19252/checks?check_run_id=552502971
of https://github.com/python/cpython/pull/19252/files

Reformatted error:

AssertionError: Regex didn't match:

"Fatal Python error: _enter_buffered_busy: could not acquire lock for <(_io\\.)?BufferedWriter name='<stderr>'> at interpreter shutdown, possibly due to daemon threads"

not found in

'Traceback (most recent call last):
  File "<string>", line 15, in <module>
  File "/Users/runner/runners/2.165.2/work/cpython/cpython/Lib/test/support/__init__.py", line 2913, in __enter__
    self.old_value = resource.getrlimit(resource.RLIMIT_CORE)
AttributeError: module \'resource\' has no attribute \'RLIMIT_CORE\'
'

It seems like resource.RLIMIT_CORE is not available on this macOS machine.