These errors are really strange.

Steve Dower: are you aware of anything recent change on the macOS job of Azure Pipelines / GH Actions.

pythoninfo:
---
os.uname: posix.uname_result(sysname='Darwin', nodename='Mac-1422.local', release='19.3.0', version='Darwin Kernel Version 19.3.0: Thu Jan  9 20:58:23 PST 2020; root:xnu-6153.81.5~1/RELEASE_X86_64', machine='x86_64')

platform.architecture: 64bit

platform.platform: macOS-10.15.3-x86_64-i386-64bit
---


> example: https://github.com/python/cpython/pull/19073/checks?check_run_id=519539592

./python.exe -m test.pythoninfo
ERROR: collect_pwd() failed
Traceback (most recent call last):
  File "/Users/runner/runners/2.165.2/work/cpython/cpython/Lib/test/pythoninfo.py", line 761, in collect_info
    collect_func(info_add)
  File "/Users/runner/runners/2.165.2/work/cpython/cpython/Lib/test/pythoninfo.py", line 336, in collect_pwd
    groups = os.getgrouplist(entry.pw_name, entry.pw_gid)
OSError: [Errno 0] Error

Collection failed: exit with error


> PR 19075

test_posix.test_getgrouplist() failed with:

======================================================================
ERROR: test_getgrouplist (test.test_posix.PosixTester)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/Users/runner/runners/2.165.2/work/cpython/cpython/Lib/test/test_posix.py", line 1028, in test_getgrouplist
    self.assertIn(group, posix.getgrouplist(user, group))
OSError: [Errno 25] Inappropriate ioctl for device