Build failed. https://zuul.opendev.org/t/openstack/buildset/4561fb8553404ca6bb8b458f35dfbb59 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/4749ff7b38d8455aba19bdb4729cb0f6 : SUCCESS in 3m 52s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/efff093fe9974a1386474258b904fb41 : FAILURE in 3m 17s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ee1e32cbe94442ff934bc399f1c0e83f : SUCCESS in 3m 18s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2f2c1f1c007e45bdbaa985d2f431c774 : SUCCESS in 5m 12s