Skip packages that cannot be yanked
Skip packages that cannot be yanked

rather than retrying the same until the max error count is reached

Acidburn0zzz/worker,Acidburn0zzz/worker,henrikhodne-abandoned/worker,solarce/worker,travis-ci/worker,henrikhodne-abandoned/worker,Acidburn0zzz/worker,solarce/worker,travis-ci/worker,travis-ci/worker,solarce/worker,henrikhodne-abandoned/worker