Build failed. https://zuul.opendev.org/t/openstack/buildset/44c53577e19e40da96cbb576efa5a73e - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/35d86aff8dff4f35878d38fcdea8478b : SUCCESS in 2m 48s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/2b02ec43caa64c1ab57e360d4b51a3e7 : SUCCESS in 5m 23s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f4c37b96ecb54b9d9e1c55816125c5f5 : FAILURE in 3m 49s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b8fa3cab650b4908bb53ec435a9597eb : SUCCESS in 4m 50s