Build failed. https://zuul.opendev.org/t/openstack/buildset/35a28a779c4646478697ced1b0a91f43 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/883b750c7ea64b7e9d6a8fcc2b06634d : FAILURE in 5m 54s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/beb44e823bdf489bb6179c74efea8321 : SUCCESS in 5m 44s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2943b46258db488a8562cd10db1e17a8 : SUCCESS in 5m 23s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/0a1e5cf2a81146aeb332c6fc9c29e446 : SUCCESS in 6m 07s