Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/15e9eb113a4a4fd09a2fb3f7514f7796 : SUCCESS in 4m 14s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c02896a58b3140eebf129838e5375943 : FAILURE in 3m 53s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1184d1f5d33b4450b9334c5df7e2e706 : SUCCESS in 4m 14s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8113fa9921c94efe8aa0990879f44060 : SUCCESS in 4m 00s