Build failed. https://zuul.opendev.org/t/openstack/buildset/ad6291af88d8468bb5b77b36a83c6c05 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/20c075ccb64c41fc996d335cc7241541 : SUCCESS in 3m 14s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7b71f1c0061f4226bb996296cbbee829 : FAILURE in 3m 29s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/cd47bb0d914f42bb9e42626621da966b : SUCCESS in 3m 17s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2aaab121ced04914917bf5a15f0c799e : SUCCESS in 3m 42s