Build failed. https://zuul.opendev.org/t/openstack/buildset/49b320bbe7fc4687ad2e6f982008d745 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8c654fb633f94ce2985ccc94ca2781f7 : SUCCESS in 4m 25s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/52475b195800433bbc1a625258fe945c : FAILURE in 3m 16s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/16eade7f911c456d9587d4ec6d494839 : SUCCESS in 3m 19s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/66c6e11a61b642d4990bc254271fbde4 : FAILURE in 4m 25s