Build failed. https://zuul.opendev.org/t/openstack/buildset/9ec7a9a54cdd4f2e9bb308646f1f974c - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/16f9fea04cef4712814c5d945dc2557c : SUCCESS in 5m 36s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/1d868981eb284d0aa5e2209ab0613be3 : SUCCESS in 6m 42s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/827e305620e14d1f802ea505c4c293b6 : SUCCESS in 3m 52s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/dde01778a417442d8c1aa48432d18307 : FAILURE in 4m 45s