Build failed. https://zuul.opendev.org/t/openstack/buildset/b4fef0da7f104da88a5a3f235c2b9f3c - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/98d6ac682b75419e9f2f870d222a6e68 : SUCCESS in 4m 19s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/25e0cbd1de614f8fb262c5f2a596d913 : RETRY_LIMIT in 3m 14s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/bdaef0a1f3dd4cb3a8d4cd88a44acd82 : SUCCESS in 4m 15s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c749a5bca41847c88b3b4e1d341b1147 : SUCCESS in 4m 02s