Use separate, non-default rundir when runit is not pid1

7 jobs for master in 8 minutes and 22 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #184591
build

00:02:57

 
  Test
passed #184594
autopkgtest

00:01:53

passed #184595
blhc

00:01:29

passed #184593
lintian

00:01:56

failed #184783
piuparts

00:02:25

passed #184592
reprotest

00:02:59

failed #184596
piuparts

00:02:18

 
Name Stage Failure
failed
piuparts Test
0m19.4s DEBUG: Starting command: ['umount', '/tmp/tmpdrUXkg/dev/pts']
0m19.4s DEBUG: Command ok: ['umount', '/tmp/tmpdrUXkg/dev/pts']
0m19.4s DEBUG: Starting command: ['umount', '/tmp/tmpdrUXkg/proc']
0m19.4s DEBUG: Command ok: ['umount', '/tmp/tmpdrUXkg/proc']
0m19.4s DEBUG: Starting command: ['rm', '-rf', '--one-file-system', '/tmp/tmpdrUXkg']
0m19.5s DEBUG: Command ok: ['rm', '-rf', '--one-file-system', '/tmp/tmpdrUXkg']
0m19.5s DEBUG: Removed directory tree at /tmp/tmpdrUXkg
0m19.5s ERROR: piuparts run ends.
ERROR: Job failed: exit code 1