Build failed. https://zuul.opendev.org/t/openstack/buildset/2bb798398ce041bf96d22b5374a9f9a5 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9757e17c41b549708201746f490f7855 : SUCCESS in 2m 45s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/2fc9799db01b4dcdb1fb22db292c1388 : FAILURE in 2m 46s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/bdf2e91aeff748a6ac32f66e19238e9e : SUCCESS in 2m 49s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/03d755ef8e4d40a4997a2ac21e70aea2 : FAILURE in 2m 42s