WIP: Debug stalling azure windows/macos builds
xref https://dev.azure.com/pandas-dev/pandas/_build/results?buildId=70734&view=logs&jobId=054c7612-f473-5cf0-0a65-77b54574553a&j=054c7612-f473-5cf0-0a65-77b54574553a&t=7218990d-7c28-52cc-5797-2fee2b0645b4

The builtin pytest faulthandler doesn't seem to be compatable with xdist due to https://github.com/pytest-dev/pytest-xdist/issues/205 I am not sure what else to try. Closing