===== Parallel build; waiting for Lubuntu mirror to sync ===== Fri Jun 24 15:39:04 UTC 2016 lockfile: Sorry, giving up on "/srv/cdimage.ubuntu.com/etc/.lock-archive-sync" Timed out waiting for archive sync lock! Traceback (most recent call last): File "/srv/cdimage.ubuntu.com/bin/../lib/cdimage/build.py", line 719, in build_image_set_locked sync_local_mirror(config, multipidfile_state) File "/srv/cdimage.ubuntu.com/bin/../lib/cdimage/build.py", line 266, in sync_local_mirror subprocess.check_call(["lockfile", "-8", "-r", "450", sync_lock]) File "/usr/lib/python2.7/subprocess.py", line 511, in check_call raise CalledProcessError(retcode, cmd) CalledProcessError: Command '['lockfile', '-8', '-r', '450', '/srv/cdimage.ubuntu.com/etc/.lock-archive-sync']' returned non-zero exit status 73