Build failed. https://zuul.opendev.org/t/openstack/buildset/c55f219ac2ee4b7d9e8d4d61cde3c720 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/535242b37707402a89f7c0d6ffa1c5a6 : SUCCESS in 3m 23s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d10c2628b0e4493b8c842c969a8b9590 : SUCCESS in 4m 44s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/4c51e6dc74db4ee2b2deff5434d7c5b3 : SUCCESS in 3m 23s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ad2c0377dc1e41eb8db9b288b7674fc5 : FAILURE in 3m 02s