Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c112353ccf3a436eaa02cc901e939ec2 : SUCCESS in 19m 16s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c0e3dd2891024e788717fb02a0198ccd : FAILURE in 3m 37s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/16f4e7d09e024ee1a8ac84f916108850 : SUCCESS in 4m 38s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/97decf37bb7e4c12b995581577e8a874 : SUCCESS in 5m 07s