Build failed. https://zuul.opendev.org/t/openstack/buildset/32c12128f14b493aa1ae55fad459655e - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ab5faaa44f574319869c20d79738c22a : SUCCESS in 3m 15s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/04dffbc36fd941fca5566b6f040d39c0 : SUCCESS in 3m 31s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/fc182a8b46b2483aaede69de3cee1858 : SUCCESS in 4m 54s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3171b1a0697e4689a31efd95d40fa475 : FAILURE in 3m 35s