Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9504ea7c92ac441287cf7b05b35353f4 : SUCCESS in 4m 28s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8a6dd538cd0942b3b4b000a3084533d1 : FAILURE in 4m 21s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/aee658dc3f0b471f9c0f15c300670253 : SUCCESS in 5m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/723d5e73901342e8b27e1401d803ea17 : SUCCESS in 5m 09s