check why logfiles sometimes not get cleaned properly

Created by: philmmanjaro

In some occasions the logfiles won't get cleaned properly:

==> Leaving fakeroot environment.
==> Finished making: snapd 2.0.8.1-1 (Wed Jun 15 06:20:41 UTC 2016)
  -> Moving [snapd-2.0.8.1-1-x86_64.pkg.tar.xz] -> [/var/cache/manjaro-tools/pkg/unstable/x86_64]
  -> Archiving log files [snapd-2.0.8.1-1-x86_64.log.tar.xz] ...
  -> Cleaning log files ...
chown: cannot access 'snapd-2.0.8.1-1-x86_64.log.tar.xz': No such file or directory
==> Finished building [snapd]