Build failed. https://zuul.opendev.org/t/openstack/buildset/602133dfea7c44148fddc9c15d6f4ca4 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9ddf902757424758b5cca464f110c4ea : SUCCESS in 4m 35s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/faafb8679ba944888998877511953cca : SUCCESS in 5m 52s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/acd451c58fdd45fa9f66382606ef926c : SUCCESS in 6m 09s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/0baba219549c499590c59c5a939007ca : FAILURE in 5m 07s