Build failed. https://zuul.opendev.org/t/openstack/buildset/76e96735f7ff45c0b5aa11654f1d45e7 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/2b47f16c37b64e089d1b6737ecc726e3 : SUCCESS in 4m 14s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/81a6d489e0b04657afc79de8aefa3352 : FAILURE in 3m 37s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/5134f955f6554727b59c984ba49f54a5 : SUCCESS in 3m 27s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/cc74278ecea340779221027131f1f116 : SUCCESS in 5m 14s