Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/2ad6d4d8f8e048288c3284227c9a5102 : SUCCESS in 7m 37s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/3c2f5be582a948d9a973aee38ab8faed : FAILURE in 7m 18s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/33ed4e4f9d2544e7b46d051f0b26913b : SUCCESS in 7m 38s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/76f3494975e84ed5893081b74002bb50 : SUCCESS in 7m 58s