[Twisted-Python] Problem with osx10.10-py2.7 builder

Hi, Can someone check this builder: https://buildbot.twistedmatrix.com/builders/osx10.10-py2.7 It is failing randomly in weird ways during builds. For example, in some cases it fails to install tox. In other cases, the tests terminate in some random spot. This builder is marked as "Required", so it is a bit annoying. -- Craig