[Piuparts-reports] problem with piuparts-slave detected

[piuparts slave]

Either a test is running for a very long time (but no test
should run longer than an hour), piuparts-slave hangs or is
not running at all or wasn't started with
~piupartss/bin/slave_run - please investigate and take
appropriate measures!

02:12:52 -------------------------------------------
02:12:52 Running section buster-rcmd (precedence=4)
02:13:12 Reserved for us: erlang-nox 1:20.3.2+dfsg-1
02:13:12 Reserved for us: education-ltsp-server 2.10.20
02:13:12 Reserved for us: erlang 1:20.3.2+dfsg-1
02:13:12 Master didn't reserve anything (more) for us
02:13:12 Master buster-rcmd status: successfully-tested=53854 failed-testing=39 cannot-be-tested=11 waiting-to-be-tested=3 waiting-for-dependency-to-be-tested=1 dependency-failed-testing=6 dependency-cannot-be-tested=10 dependency-does-not-exist=2 unknown=0 outdated=0 total=53926
02:13:12 Connection to master closed
02:13:16 Testing package buster-rcmd/erlang-nox 1:20.3.2+dfsg-1
02:14:10 Testing package buster-rcmd/education-ltsp-server 2.10.20