Build failed. https://zuul.opendev.org/t/openstack/buildset/7536d6ab573645dbbecd015b9008c153 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d6654e7a22384734845b32df5ec16f95 : SUCCESS in 3m 21s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a4df72bbd2234160a348c53f72e74983 : FAILURE in 2m 52s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b07002daf04b4ebc8b72235dbb385926 : SUCCESS in 4m 21s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8988ac66fca347049c86931ca3d747dd : FAILURE in 2m 57s