Build failed. https://zuul.opendev.org/t/openstack/buildset/887363b49d1646d4b55e1a8aa6a103c9 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ed48c6b85899496c8fe7d5b01267179f : FAILURE in 4m 05s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8dd3da47be044407b824e2e8976e6e84 : FAILURE in 3m 47s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d8d5f19228424a30b58ef27ea33d6b30 : FAILURE in 4m 44s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/47d6ce767c7b4223b2d9df0943ac14ef : FAILURE in 4m 12s