Build failed. https://zuul.opendev.org/t/openstack/buildset/c67c8bab4f0d4dc2a99abeabdf841cdf - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ad379c6a9c854b12b25888736b08bd20 : SUCCESS in 3m 18s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/733455c4f8954e1fae5a0595fc081c86 : FAILURE in 3m 11s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/30b076d46d48454186cff8e9740996b9 : SUCCESS in 3m 25s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/27fcf9548e9a4cbba894f7c66b57f585 : SUCCESS in 6m 13s