Build failed. https://zuul.opendev.org/t/openstack/buildset/6bea8fd7ec1a4e22b06abd5ab2bf19ca - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/30d6bed468b94d93bce48492945dc2d7 : SUCCESS in 3m 53s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/3e744ff282264b1b8f59db8a4d2231bb : SUCCESS in 4m 48s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/79ece213b8314822be62cc13ebf0e5fd : SUCCESS in 4m 08s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/767d22fa37f747f4961c26eea155666c : FAILURE in 3m 55s