Build failed. https://zuul.opendev.org/t/openstack/buildset/6969ea31efd742a9b15e027e2c66d756 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a0de703cf8364410b05f6e5d45dbc5bc : SUCCESS in 4m 04s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/69e00786fe234c0ea51419a3b39028e2 : FAILURE in 3m 01s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b8928bd804b840bbb9f00e4f8758cea3 : SUCCESS in 4m 04s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/faa72f04b0d04ca6a71de1e57ae9ce40 : SUCCESS in 4m 35s