Build failed. https://zuul.opendev.org/t/openstack/buildset/eafb4f8ed34a4d7b905375989c27c21f - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b8adaae53c9344f98a84741f8de5d8fc : SUCCESS in 3m 58s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/efe3cb727f8b4e30933ffe895e9f2f7f : FAILURE in 3m 31s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1d516fa0523443dba4e4fd17e4454d88 : SUCCESS in 2m 59s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/19f530595aa24bf59228ae4c4b0cf204 : FAILURE in 3m 51s