Build failed. https://zuul.opendev.org/t/openstack/buildset/21262fd2be4541b9af54c38f836eca46 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/de779b5763084bd18bbf950de0ead834 : FAILURE in 5m 36s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/799ea64f745949369e0799fc410a5929 : SUCCESS in 6m 30s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/edf4dbfe01d54c458b12c2adcd4063ab : SUCCESS in 7m 22s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ee8df1d0fd544502839dc927df2dd138 : SUCCESS in 7m 09s