Commits on May 6, 2016

1. We are disabling the caching for now until we can log into the machin… …

   …e directly and enable it.
   
   See IRC conversation here:
   http://logs.glob.uno/?c=mozilla%23servo#c424015
   
   Here is an example of the errors:
   
   ```
   New python executable in /c/buildbot/slave/windows/build/python/_virtualenv/bin/python2.7
   Also creating executable in /c/buildbot/slave/windows/build/python/_virtualenv/bin/python
   Installing setuptools, pip, wheel...done.
   Running virtualenv with interpreter /usr/bin/python2.7
   looking for rustc at /c/buildbot/slave/windows/build/C:\msys64\home\Administrator\.servo/rust/2016-04-29/rustc-nightly-x86_64-pc-windows-gnu/rustc/bin/rustc
   Error running mach:
   
       ['build', '-d', '-v']
   
   The error occurred in code that was called by the mach command. This is either
   a bug in the called code itself or in the way that mach is calling it.
   
   You should consider filing a bug for this issue.
   
   If filing a bug, please include the full output of mach, including this error
   message.
   
   The details of the failure are as follows:
   
   OSError: [Errno 2] No such file or directory: '/c/buildbot/slave/windows/build/C:\\msys64\\home\\Administrator\\.servo'
   
     File "/c/buildbot/slave/windows/build/python/servo/build_commands.py", line 195, in build
       self.ensure_bootstrapped(target=target)
     File "./python/servo/command_base.py", line 432, in ensure_bootstrapped
       Registrar.dispatch("bootstrap-rust", context=self.context, target=filter(None, [target]))
     File "/c/buildbot/slave/windows/build/python/_virtualenv/lib/python2.7/site-packages/mach/registrar.py", line 123, in dispatch
       return self._run_command_handler(handler, context=context, **kwargs)
     File "/c/buildbot/slave/windows/build/python/_virtualenv/lib/python2.7/site-packages/mach/registrar.py", line 90, in _run_command_handler
       result = fn(**kwargs)
     File "/c/buildbot/slave/windows/build/python/servo/bootstrap_commands.py", line 146, in bootstrap_rustc
       os.makedirs(rust_dir)
     File "/usr/lib/python2.7/os.py", line 150, in makedirs
       makedirs(head, mode)
     File "/usr/lib/python2.7/os.py", line 150, in makedirs
       makedirs(head, mode)
     File "/usr/lib/python2.7/os.py", line 150, in makedirs
       makedirs(head, mode)
     File "/usr/lib/python2.7/os.py", line 157, in makedirs
       mkdir(name, mode)
   program finished with exit code 1
   elapsedTime=30.809000
   ```

   

   larsbergstrom committed May 6, 2016

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