pytest-container flake with locking

[thrix]

We are hitting this sometin in CI, and the reported also hit it locally when using parallel execution via python-xdist.

See for more details dcermak/pytest_container#232

More debugging is needed to find the root cause, asked also the upstream for some pointers.

[psss]

Here's a recent job with the failure.

[psss]

And here's one more.

[psss]

A bit different example of vanished files:

err: file has vanished: "/var/ARTIFACTS/work-fullovhc3ar2/plans/install/pip/full/provision/guests.yaml.copy"
err: rsync warning: some files vanished before they could be transferred (code 24) at main.c(1338) [sender=3.3.0]

Here's the job for reference.

[happz]

A bit different example of vanished files:

err: file has vanished: "/var/ARTIFACTS/work-fullovhc3ar2/plans/install/pip/full/provision/guests.yaml.copy"
err: rsync warning: some files vanished before they could be transferred (code 24) at main.c(1338) [sender=3.3.0]

Here's the job for reference.

That's a different issue, this one's TF bug: TF creates copies of files inside tmt workdir, tmt runs rsync, rsync notices them - but TF removes the files because it copied them elsewhere and they are no longer needed, and rsync complains about vanishing files. These copies should not exist, and TF is working on fixing it.