Build failed. https://zuul.opendev.org/t/openstack/buildset/e91af6ddb2dc4b428cb827c7da281a70 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/20e007cd49944c7ea124a7c306557a0d : SUCCESS in 6m 12s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/681973d3beaf4d619286d0f3c66c642d : SUCCESS in 5m 53s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/bdbb98d270e7449a9233d20ebb73c96d : SUCCESS in 6m 01s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2e63664d695c4d059e2be4598bc90a33 : FAILURE in 5m 17s