Build failed. https://zuul.opendev.org/t/openstack/buildset/fb02348807944fa791f7c5b4d2361594 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f8be80ce076141ceb57cbd4a6de77eaa : SUCCESS in 2m 58s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5a2ffa8b408d4624b73f032d0062cf22 : FAILURE in 3m 22s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/7d1443183b4541cca52964ec14d981a0 : SUCCESS in 2m 58s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/51cb6ddd15e44aab970a4ea3f5c2c4c1 : FAILURE in 3m 25s