Build failed. https://zuul.opendev.org/t/openstack/buildset/5c687907285f4635b8576a16dd56ffb8 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a736e4c8413a4fa9a3f90c1bc9cc3472 : SUCCESS in 4m 11s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/58a36a7639aa415a85fa6a28014e2388 : SUCCESS in 5m 58s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/881aaca3acc34197ba040e423298b7ae : SUCCESS in 5m 21s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5d04813c8ff04eaab56beb10c0d42979 : FAILURE in 3m 34s