Build failed. https://zuul.opendev.org/t/openstack/buildset/5ca1881996c04e20973a5595afe41051 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/1f4596cab65143c6aaeaeb055382b4a5 : FAILURE in 6m 48s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7ef24d0cf79f4fe69ee7d20cda14d534 : SUCCESS in 4m 52s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6cd0955a8a8a4c6b82600788523c8918 : SUCCESS in 6m 42s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/fc44216fbb2b4883a25e81ee6c13883f : SUCCESS in 5m 58s