Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/2ece862d98d041768af8f3d1b8d85db4 : SUCCESS in 6m 59s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/2fc9aed2fe93469ca43ec955ff58f4f0 : FAILURE in 4m 21s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/abee295996ee4b078a9901f246854117 : SUCCESS in 5m 31s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/69fd9d3ab17d4e3bb274a2061bbcea39 : SUCCESS in 5m 28s