Build failed. - build-openstack-sphinx-docs http://logs.openstack.org/periodic-stable/git.openstack.org/openstack/castellan/stable/pike/build-openstack-sphinx-docs/719df98/ : RETRY_LIMIT in 4m 11s - openstack-tox-py27 http://logs.openstack.org/periodic-stable/git.openstack.org/openstack/castellan/stable/pike/openstack-tox-py27/80f9281/ : SUCCESS in 4m 49s