[Piuparts-reports] problem with piuparts-slave detected

[piuparts slave]

Either a test is running for a very long time (more than 90 minutes),
or piuparts-slave hangs or is not running at all or wasn't started with
~piupartss/bin/slave_run - please investigate and take appropriate measures!

06:39:35 master is busy
06:39:35 -------------------------------------------
06:39:35 Running section jessie2bpo (precedence=6)
06:39:35 idle (3096)
06:39:35 -------------------------------------------
06:39:35 Running section jessie2Xstretch-rcmd (precedence=6)
06:39:58 Master didn't reserve anything (more) for us
06:39:58 Master jessie2Xstretch-rcmd status: successfully-tested=42407 failed-testing=29 cannot-be-tested=0 waiting-to-be-tested=0 waiting-for-dependency-to-be-tested=0 dependency-failed-testing=3 dependency-cannot-be-tested=0 dependency-does-not-exist=5 unknown=0 outdated=0 total=42444
06:39:58 -------------------------------------------
06:39:58 Running section wheezy2jessie-lts (precedence=7)