Build failed. https://zuul.opendev.org/t/openstack/buildset/1a65af2adc464042b22fc6054b8a1239 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/92880df8802a4d809fce2b22aad8c0cf : SUCCESS in 3m 40s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/131eeff766b646fe9bc1edda2f547cc2 : SUCCESS in 3m 40s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c9c23188cacb4daab1c021237608e342 : SUCCESS in 3m 35s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/4341019ff18c4568956cb2195bec12db : FAILURE in 2m 46s