Build failed. - build-openstack-sphinx-docs http://logs.openstack.org/periodic-stable/opendev.org/openstack/heat/stable/ocata/build-openstack-sphinx-docs/d695b0d/html/ : SUCCESS in 5m 16s - openstack-tox-py27 http://logs.openstack.org/periodic-stable/opendev.org/openstack/heat/stable/ocata/openstack-tox-py27/5052866/ : RETRY_LIMIT in 3m 48s