Build failed. https://zuul.opendev.org/t/openstack/buildset/bf8d304725fe4c0e99d02e7d98e74371 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/468c139e7cd44613b7c23d8bcc009f9e : SUCCESS in 2m 55s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/52029c28a6e241509cc5fc6f85abf4cf : FAILURE in 2m 41s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d7dfd3719af74e65922a0eb6afa904c8 : SUCCESS in 3m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/136dd6154eea4ed8b12ab8bdb2af8f69 : FAILURE in 2m 39s