Build failed. - build-openstack-sphinx-docs https://zuul.opendev.org/t/openstack/build/c4d93c35ff9f4b7baaff4f91cd1d8351 : RETRY_LIMIT in 4m 15s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/28dfa54d8f924210aa6123be0b85780a : FAILURE in 4m 36s