This is the same as bug #1094097. The failed test output shows this error:
> munged: Error: Logfile is insecure: invalid ownership of "/tmp" The preconditions for that error are here: https://sources.debian.org/src/munge/0.5.16-1/src/munged/path.c/#L224munged is checking for that directory to be owned by either root or the process euid, and exits immediately when that check fails.
-Chris
