Build issue log

ERROR: invocation failed (exit code 2), logfile: /home/travis/build/plone/bobtemplates.plone/.tox/py27-skeletontests-Plone-4.3-template-addon_theme/log/py27-skeletontests-Plone-4.3-template-addon_theme-2.log ERROR: actionid: py27-skeletontests-Plone-4.3-template-addon_theme

I've been trying to debug some Travis CI build fail errors. I've tried looking into the log file which was thrown by the error but the file does not seem to exist. Can anyone help me out in telling me what the error actually means and what would be a probable fix>

Corresponding PR on github