These added lines in /usr/bin/run-parts:
[ "$AUX1" == $AUX2 ] || exit 0
is bogus. It's normal to use vixie-cron without anacron.
On my systems anacron is not even installed and the file
/var/spool/anacron/cron.daily don't even exists!
Result is that /usr/bin/parts will exit on every run and no cron jobs will
be executed. For a crond based update/patching system this is really bad.
The patch from #295811 should be applied and a new updated package
should be released very soon.
Seems to be fixed for F7 already, however why is this not fixed in rawhide?