[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!

14:49:21 Testing package stretch2buster-rcmd/sumo-tools 0.32.0+dfsg1-1
14:52:45 Testing package stretch2buster-rcmd/libghc-process-extras-doc 0.7.4-1
14:55:29 Testing package stretch2buster-rcmd/libghc-byteable-doc 0.1.1-8
14:58:37 Deleting outdated reference-chroot-metadata.dat
14:58:37 Testing package stretch2buster-rcmd/vlc-plugin-svg 3.0.3-2
15:01:17 Testing package stretch2buster-rcmd/libghc-lambdabot-novelty-plugins-doc 5.1.0.1-2
15:04:09 Testing package stretch2buster-rcmd/ibus-table-jyutping None
15:08:07 Testing package stretch2buster-rcmd/libghc-hashable-doc 1.2.7.0-2
15:10:56 Testing package stretch2buster-rcmd/scribus-data 1.4.7+dfsg-1
15:13:45 Testing package stretch2buster-rcmd/education-roaming-workstation 2.10.28