2014-10-31 09:31:42+0100 [-] BuildStep.failed; traceback follows
	Traceback (most recent call last):
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 290, in addCallbacks
	    self._runCallbacks()
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 551, in _runCallbacks
	    current.result = callback(current.result, *args, **kw)
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 368, in callback
	    self._startRunCallbacks(result)
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 464, in _startRunCallbacks
	    self._runCallbacks()
	--- <exception caught here> ---
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 551, in _runCallbacks
	    current.result = callback(current.result, *args, **kw)
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/buildbot-0.8.8-py2.7.egg/buildbot/process/buildstep.py", line 652, in finished
	    self._finishFinished(results)
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/buildbot-0.8.8-py2.7.egg/buildbot/process/buildstep.py", line 658, in _finishFinished
	    self.progress.finish()
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/buildbot-0.8.8-py2.7.egg/buildbot/status/progress.py", line 85, in finish
	    self.buildProgress.stepFinished(self.name)
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/buildbot-0.8.8-py2.7.egg/buildbot/status/progress.py", line 165, in stepFinished
	    assert(stepname not in self.finishedSteps)
	exceptions.AssertionError: 
	
2014-10-31 09:31:42+0100 [-] exception during failure processing
	Traceback (most recent call last):
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 551, in _runCallbacks
	    current.result = callback(current.result, *args, **kw)
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 368, in callback
	    self._startRunCallbacks(result)
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 464, in _startRunCallbacks
	    self._runCallbacks()
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 551, in _runCallbacks
	    current.result = callback(current.result, *args, **kw)
	--- <exception caught here> ---
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/buildbot-0.8.8-py2.7.egg/buildbot/process/buildstep.py", line 686, in failed
	    self.progress.finish()
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/buildbot-0.8.8-py2.7.egg/buildbot/status/progress.py", line 85, in finish
	    self.buildProgress.stepFinished(self.name)
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/buildbot-0.8.8-py2.7.egg/buildbot/status/progress.py", line 165, in stepFinished
	    assert(stepname not in self.finishedSteps)
	exceptions.AssertionError: 
	
2014-10-31 09:31:42+0100 [-] releaseLocks(<ResolveLayerHead.ResolveLayerHead object at 0x7f537811fb10>): []
2014-10-31 09:31:42+0100 [-] BuildStep.failed now firing callback
2014-10-31 09:31:42+0100 [Broker,0,127.0.0.1] <RemoteShellCommand '['git', '--version']'> rc=0
2014-10-31 09:31:42+0100 [-] <RemoteCommand 'stat' at 139996472964088>: RemoteCommand.run [2]
2014-10-31 09:31:42+0100 [Broker,0,127.0.0.1] <RemoteCommand 'stat' at 139996472964088> rc=1
2014-10-31 09:31:42+0100 [-] BuildStep.failed; traceback follows
	Traceback (most recent call last):
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 368, in callback
	    self._startRunCallbacks(result)
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 464, in _startRunCallbacks
	    self._runCallbacks()
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 551, in _runCallbacks
	    current.result = callback(current.result, *args, **kw)
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 1101, in gotResult
	    _inlineCallbacks(r, g, deferred)
	--- <exception caught here> ---
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 1045, in _inlineCallbacks
	    result = g.send(result)
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/buildbot-0.8.8-py2.7.egg/buildbot/steps/source/yoctogit.py", line 196, in full
	    self.mirrorexists = yield self._mirrorExists()
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/buildbot-0.8.8-py2.7.egg/buildbot/steps/source/yoctogit.py", line 547, in _mirrorExists
	    mirror = self.mirrordir + "/" + self.repourl.replace("git://", "") + "/"
	exceptions.TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'
	
2014-10-31 09:31:42+0100 [-] addCompleteLog(err.text)
2014-10-31 09:31:42+0100 [-] Unhandled error in Deferred:
2014-10-31 09:31:42+0100 [-] Unhandled Error
	Traceback (most recent call last):
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 290, in addCallbacks
	    self._runCallbacks()
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 551, in _runCallbacks
	    current.result = callback(current.result, *args, **kw)
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 368, in callback
	    self._startRunCallbacks(result)
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 464, in _startRunCallbacks
	    self._runCallbacks()
	--- <exception caught here> ---
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 551, in _runCallbacks
	    current.result = callback(current.result, *args, **kw)
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/buildbot-0.8.8-py2.7.egg/buildbot/process/buildstep.py", line 712, in failed
	    self.deferred.callback(EXCEPTION)
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 368, in callback
	    self._startRunCallbacks(result)
	  File "/lu/buildbot/yocto-autobuilder/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/internet/defer.py", line 457, in _startRunCallbacks
	    raise AlreadyCalledError
	twisted.internet.defer.AlreadyCalledError: