Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/92188145a1424757b1e2dd2cd3210748 : SUCCESS in 4m 10s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6b0f1b27964c41abbf51e72384bca775 : FAILURE in 3m 32s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/4d01582778c048a9abdca6e4637ac55a : SUCCESS in 3m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/99385352a7e94612b6a069a7dd64deb6 : SUCCESS in 3m 49s