Build failed. https://zuul.opendev.org/t/openstack/buildset/6ab3b666db0a491a9092d56750135a4a - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/bd624837b8cf4cbeaa51089a3194590a : SUCCESS in 3m 11s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/0f18a2c3b82d44e0a9e1305c1b056ffc : SUCCESS in 3m 12s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8c01dd28ab794a2395aaf0fb159c224c : SUCCESS in 3m 50s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/0879ac55c2164698b30d915df676a3c0 : FAILURE in 4m 28s