Build failed. https://zuul.opendev.org/t/openstack/buildset/fd53f555bd0949cd830e386d08219ac7 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/3501febceb7c47928ced2bfdc13f6970 : SUCCESS in 5m 17s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/4190c23297584346b6955865e0730cf7 : FAILURE in 4m 03s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/92db184fa7294e4d8ab392b2a332bc88 : SUCCESS in 3m 54s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/42258d6690034d4a844b2df4b9b64638 : SUCCESS in 4m 07s