Build failed. https://zuul.opendev.org/t/openstack/buildset/090db7634f8b49988d4ada486e108f6e - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d271242761724b348fc05f6eef222626 : FAILURE in 7m 28s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/4d291dad69314cc7b2e709becda45c9d : SUCCESS in 5m 02s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/94c0c8ab91524ad09bd333717bf579c7 : SUCCESS in 5m 39s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/78502345f23d41daa7adb2fd8f32ff65 : SUCCESS in 6m 12s