Build failed. https://zuul.opendev.org/t/openstack/buildset/e61b687e93ba46e8b1d9bca00c2e6424 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9f6f30e3b7e240da8ea7e617ee442b43 : FAILURE in 3m 51s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ae6abb1293644f95b989c06391692e4b : SUCCESS in 3m 21s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c22ebb277afd494f8283e06f8cb104f8 : SUCCESS in 3m 39s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ae3d316a31234fb08b372aa92bf359f9 : SUCCESS in 4m 07s