Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a977785c54c84468b9e02b706bf44d4a : SUCCESS in 6m 21s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/1f186ea66b134dcda535c4162b860fcd : FAILURE in 4m 42s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/5f50bb338354430d8a5d2b7c22d6649f : SUCCESS in 5m 10s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/78a266eb35ee42c6ad8ee2e876f9dc9b : SUCCESS in 5m 38s