Build failed. https://zuul.opendev.org/t/openstack/buildset/f3e3b8908a164beeb0b03e84127c7edd - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f5b49af306ec4a0c9b3d0eda9871f59e : SUCCESS in 4m 37s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6f8ff33dfc5d4d089baa7ce929c934ea : SUCCESS in 4m 06s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/62c58c0c98064caf931d06c2b529b046 : FAILURE in 4m 15s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/cc39e72eea964c15b46662cdb28a7275 : FAILURE in 3m 05s