Build failed. https://zuul.opendev.org/t/openstack/buildset/fdfe0c7709f84c47bfbb6e15ad2a80c2 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d9aa20c677564cdc8d1e57acc7880f30 : SUCCESS in 3m 30s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c8ae96573faa46e9980d79abe83b227f : SUCCESS in 3m 20s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/07fddc76c1d845198e04ce527a6e8931 : FAILURE in 3m 41s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/9355e6d67dd846c1821db23a54bab6dc : FAILURE in 3m 25s