Build failed. https://zuul.opendev.org/t/openstack/buildset/d9f6b29fd7c64fb3a61dcb7c3b2d6e6b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9018617e4aab421c875caab3ac42ebe7 : SUCCESS in 3m 51s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8acaca1f841c4ffd83599214ea3b6f85 : FAILURE in 3m 25s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/dc98f63ff5cf488dbafd8332284afa80 : SUCCESS in 3m 50s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/415d6d08ee574e80a1d196db09f009be : SUCCESS in 4m 18s