[Buildbot] #3632: Exception when shutting down

[Buildbot trac]

#3632: Exception when shutting down
----------------------+-----------------------
Reporter:  kayhayen   |      Owner:
    Type:  undecided  |     Status:  new
Priority:  major      |  Milestone:  undecided
 Version:  0.9.0      |   Keywords:
----------------------+-----------------------
 I have this:

 2016-10-27 07:14:32+0200 [-] Received SIGTERM, shutting down.
 2016-10-27 07:14:33+0200 [-] Unhandled error in Deferred:
 2016-10-27 07:14:33+0200 [-] Unhandled Error
         Traceback (most recent call last):
         Failure: twisted.internet.defer.FirstError: FirstError[#10,
 [Failure instance: Traceback: <type 'exceptions.AttributeError'>:
 'NoneType' object has no attribute 'addPointEvent'
         /home/nuitka-buildmaster/sandbox/local/lib/python2.7/site-
 packages/twisted/internet/defer.py:1241:gotResult
         /home/nuitka-buildmaster/sandbox/local/lib/python2.7/site-
 packages/twisted/internet/defer.py:1185:_inlineCallbacks
         /home/nuitka-buildmaster/sandbox/local/lib/python2.7/site-
 packages/buildbot/master.py:334:stopService
         /home/nuitka-buildmaster/sandbox/local/lib/python2.7/site-
 packages/buildbot/util/service.py:84:stopService
         --- <exception caught here> ---
         /home/nuitka-buildmaster/sandbox/local/lib/python2.7/site-
 packages/twisted/internet/defer.py:149:maybeDeferred
         /home/nuitka-buildmaster/sandbox/local/lib/python2.7/site-
 packages/buildbot/process/botmaster.py:233:stopService
         ]]

 2016-10-27 07:14:33+0200 [-] (TCP Port 9999 Closed)
 2016-10-27 07:14:33+0200 [-] Stopping factory
 <twisted.spread.pb.PBServerFactory instance at 0xb40e6cd8>
 2016-10-27 07:14:33+0200 [-] Main loop terminated.
 2016-10-27 07:14:33+0200 [-] Server Shut Down.

 The PyPI version seems to be "post1", if that helps. My config is migrated
 to the point that I have no obvious errors. Feel free to ignore this, but
 maybe it's helping you to find a bug.

 Thanks,
 Kay

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Ticket URL: <http://trac.buildbot.net/ticket/3632>
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