Build failed. https://zuul.opendev.org/t/openstack/buildset/a1c0e9d698c7441f8941dfca13a41645 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/cdd28c5151d0464a90fb8be1ed84277f : FAILURE in 3m 07s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b859755a999f45f7bdc565e85921e85c : SUCCESS in 3m 23s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/09b397f46e46460d8dba257a814f4bfb : SUCCESS in 3m 55s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8dbfabc0072c4c3f98e1f18dc910a796 : SUCCESS in 4m 03s