rebooting failure in testing-farm c10s

[cgwalters]

Example job https://github.com/bootc-dev/bootc/pull/1798/checks?check_run_id=56079749683 ➡️ https://artifacts.dev.testing-farm.io/f456b403-e87f-49dc-be80-7813f9de36ea/

We have an attempted workaround here

bootc/tmt/tests/booted/bootc_testlib.nu

Line 7 in f49a6ba

# Sometimes systemd daemons are still running old binaries and response "Access denied" when send reboot request

But this clearly needs root causing.

Is it failing in the ansible playbook which is doing the reboot? Maybe...I think it must be the inner test, but I don't see useful logs...