Build failed. https://zuul.opendev.org/t/openstack/buildset/ed8b1c9af5a34cc6b854ddf42ffeaafc - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ec39ac82ef41477db36b91ab08dbc2ff : SUCCESS in 3m 19s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/53f63d9d009f4fa8b45b4ae269f163b4 : SUCCESS in 2m 42s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2991c215e3394e1d847a557c8219377a : SUCCESS in 3m 08s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/281ce54a0f3541c282171eed06dda58d : FAILURE in 3m 04s