Build failed. https://zuul.opendev.org/t/openstack/buildset/942dd7fec12f4ee08eca09c3738d07c1 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/69c3c81a88dd4610bcdaed188c820a76 : FAILURE in 6m 12s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/cc79b5f32e77490884b693f849dc32f1 : SUCCESS in 5m 41s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f625891aa0214ab3812515fb3f809a83 : SUCCESS in 6m 29s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/6479fcc8a44f473da406acdf45421f26 : SUCCESS in 7m 40s