ah, this is the one that's not pickable
```E ...
# developmentf
full-kilobyte-93429
04/27/2016, 6:53 PMah, this is the one that's not pickable
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E SerializationError: Failed to pickle Throw(exc=GitDiedException(u"Git cat-file died while trying to read 'HEAD:\n'.",)): Can't pickle <class 'pants.scm.git.GitDiedException'>: attribute lookup pants.scm.git.GitDiedException failed