Build failed. https://zuul.opendev.org/t/openstack/buildset/e2d1f29c9a5346af96f0e53ea7cf39f1 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a20b674f015846e5b6ffd279cca3eb06 : SUCCESS in 4m 16s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6cd27e4d733f4be5b8be88e979401f0c : SUCCESS in 5m 25s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/37a6da62770347d8b3ee8b951f44ab9d : SUCCESS in 4m 14s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2f32b37db0b444e0ac6860045b2c7b42 : FAILURE in 3m 44s