Build failed. https://zuul.opendev.org/t/openstack/buildset/11930a4603164a08a375317e082bb252 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/79c451092afe43388a852416f934733f : SUCCESS in 4m 16s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/eaac5fba02da4d8e9377b16d67d366fc : FAILURE in 3m 04s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/7be3547399ac44d8995cfbd5f71c5645 : SUCCESS in 3m 55s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/4ed997ea1843448f8430e8f5c3115d29 : SUCCESS in 4m 10s