Build failed. https://zuul.opendev.org/t/openstack/buildset/bb12ee9f450441d2b4bdcac9090307e3 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/baf1017a5fe7419798b4524eff9cb806 : FAILURE in 4m 33s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/21bbfc9984664c2b80ce2f201456e7d9 : SUCCESS in 4m 41s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f7ae69b212964ffbb99ad8d708af72ce : SUCCESS in 4m 32s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/6ded10190d894be3a0b82b84596d5413 : SUCCESS in 4m 52s