gistfile1.txt

Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/twisted/internet/defer.py", line 588, in _runCallbacks
    current.result = callback(current.result, *args, **kw)
  File "/usr/lib/python2.7/site-packages/twisted/internet/defer.py", line 1184, in gotResult
    _inlineCallbacks(r, g, deferred)
  File "/usr/lib/python2.7/site-packages/twisted/internet/defer.py", line 1126, in _inlineCallbacks
    result = result.throwExceptionIntoGenerator(g)
  File "/usr/lib/python2.7/site-packages/twisted/python/failure.py", line 389, in throwExceptionIntoGenerator
    return g.throw(self.type, self.value, self.tb)
--- <exception caught here> ---
  File "/usr/lib/python2.7/site-packages/buildbot/process/build.py", line 289, in startBuild
    ready_or_failure = yield workerforbuilder.prepare(self)
  File "/usr/lib/python2.7/site-packages/twisted/internet/defer.py", line 1126, in _inlineCallbacks
    result = result.throwExceptionIntoGenerator(g)
  File "/usr/lib/python2.7/site-packages/twisted/python/failure.py", line 389, in throwExceptionIntoGenerator
    return g.throw(self.type, self.value, self.tb)
  File "/usr/lib/python2.7/site-packages/buildbot/worker/docker.py", line 143, in start_instance
    res = yield threads.deferToThread(self._thd_start_instance, image, volumes)
  File "/usr/lib/python2.7/site-packages/twisted/python/threadpool.py", line 246, in inContext
    result = inContext.theWork()
  File "/usr/lib/python2.7/site-packages/twisted/python/threadpool.py", line 262, in <lambda>
    inContext.theWork = lambda: context.call(ctx, func, *args, **kw)
  File "/usr/lib/python2.7/site-packages/twisted/python/context.py", line 118, in callWithContext
    return self.currentContext().callWithContext(ctx, func, *args, **kw)
  File "/usr/lib/python2.7/site-packages/twisted/python/context.py", line 81, in callWithContext
    return func(*args,**kw)
  File "/usr/lib/python2.7/site-packages/buildbot/worker/docker.py", line 178, in _thd_start_instance
    self.parse_volumes(volumes)
  File "/usr/lib/python2.7/site-packages/buildbot/worker/docker.py", line 116, in parse_volumes
    "%s. Skipping..." % volume_string)
  File "/usr/lib/python2.7/site-packages/buildbot/config.py", line 72, in error
    raise ConfigErrors([error])
buildbot.config.ConfigErrors: Invalid volume definition for docker /cache. Skipping...