Bug#901716: autopkg tests are failing

[Matthias Klose]

Package: src:beets
Version: 1.4.7-1
Severity: important
Tags: sid patch buster
the autopkg tests are failing with output on stderr. Either avoid it or allow 
the output.

http://launchpadlibrarian.net/374866086/beets_1.4.7-1_1.4.7-1ubuntu1.diff.gz