The du command completes successfully, but the build step fails with this exception:
Traceback (most recent call last):
File "C:\Python\lib\site-packages\twisted\internet\defer.py", line 182, in addCallbacks
self._runCallbacks()
File "C:\Python\lib\site-packages\twisted\internet\defer.py", line 317, in _runCallbacks
self.result = callback(self.result, *args, **kw)
File "C:\Python\lib\site-packages\twisted\internet\defer.py", line 239, in callback
self._startRunCallbacks(result)
File "C:\Python\lib\site-packages\twisted\internet\defer.py", line 304, in _startRunCallbacks
self._runCallbacks()
--- <exception caught here> ---
File "C:\Python\lib\site-packages\twisted\internet\defer.py", line 317, in _runCallbacks
self.result = callback(self.result, *args, **kw)
File "C:\Python\Lib\site-packages\buildbot\process\buildstep.py", line 955, in <lambda>
d.addCallback(lambda res: self.commandComplete(cmd))
File "C:\Python\Lib\site-packages\buildbot\steps\shell.py", line 238, in commandComplete
out = cmd.log.getText()
exceptions.AttributeError: RemoteShellCommand instance has no attribute 'log'