Build failed. https://zuul.opendev.org/t/openstack/buildset/274a717ee50644a887f7635e34a9b2b8 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/acb7938647294c1791459946fbeac589 : FAILURE in 3m 55s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ab4a25fff0404f899450fb67b87e35e0 : SUCCESS in 3m 22s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/5242b27dcfa2420fb61a19f94168f2cb : SUCCESS in 3m 10s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c7d54ca3b99e4dceac60e5f85d36bbdf : SUCCESS in 3m 51s