Build failed. - build-openstack-sphinx-docs http://logs.openstack.org/periodic-stable/git.openstack.org/openstack/castellan/stable/ocata/build-openstack-sphinx-docs/1501150/ : RETRY_LIMIT in 4m 30s - openstack-tox-py27 http://logs.openstack.org/periodic-stable/git.openstack.org/openstack/castellan/stable/ocata/openstack-tox-py27/c94540b/ : SUCCESS in 4m 23s