Build failed. - build-openstack-sphinx-docs http://logs.openstack.org/periodic-stable/opendev.org/openstack/heat/stable/ocata/build-openstack-sphinx-docs/3a8ad7a/html/ : SUCCESS in 7m 13s - openstack-tox-py27 http://logs.openstack.org/periodic-stable/opendev.org/openstack/heat/stable/ocata/openstack-tox-py27/853efec/ : RETRY_LIMIT in 3m 10s