Build failed. https://zuul.opendev.org/t/openstack/buildset/0b358e159d7c4883bffc20927d4baedd - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/dd58c85dd5434e8788065f2165dde994 : SUCCESS in 4m 26s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/aa3397f7c30a48f9b2a361f34af7fcff : FAILURE in 3m 28s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8cea23262f624266af435d6c5c47a24c : SUCCESS in 3m 32s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/cd4d2c2b9928432a81385cf56f453072 : SUCCESS in 5m 06s