Build failed. https://zuul.opendev.org/t/openstack/buildset/30bdf140afb5410495caa68d04c91873 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/0b9a68bd9fe04ebda7b57cbbfaf0b454 : SUCCESS in 8m 35s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/9f9866c4aefe4f0ba3125f46447bf8c2 : SUCCESS in 6m 14s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/4e6c9eacf8a94501896ae4a4466fc541 : FAILURE in 5m 21s