[users at bb.net] builder: build building but build: finished

[Chi-Hua Chen]

Hi,

After upgrading to 0.9.0rc1, some of our builds would show up as
'building' in buildbot/#/builders/builderid but 'finished XXX ago' --
where XXX can be several days - in
buildbot/#/builders/builderid/builds/number. These builds have
complete=true and state_string=building from the rest API.

>From the timestamps in stdout/stderr sent to master, some of these
builds are actually still going, some have 'cancelled' in their last
step and are actually terminated.

This state seems to prevent other builds that share the same
WorkerLock from starting.

Is there any logging we can turn on to see what's going on? Also,
what's the best way to unblock those builds (that are acquiring
locks)?

Chi-Hua