Build failed. https://zuul.opendev.org/t/openstack/buildset/80b1b9649f3a415490db653549ddd80c - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9dd09ba9bed0462793b52be23d09f9a7 : FAILURE in 2m 51s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7e32384bf1a64afa9d4a87dc07a2e05b : SUCCESS in 3m 27s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c13cbbff8282471ab7d355961b9fc6a2 : SUCCESS in 3m 27s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ab63e0ae11f7422d8c03edcaf0dd0104 : SUCCESS in 3m 10s