Build failed. https://zuul.opendev.org/t/openstack/buildset/fff248309ed342b48d011462fc208a23 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f0c9e4d5d3754783920e6f4f9ce82d6b : SUCCESS in 4m 25s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/2f4633dd3e364db095044374a7fb245f : SUCCESS in 3m 55s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ef3b459f5ed84e42875edb327fb4f800 : SUCCESS in 4m 28s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/344f40ad80774e798de47d8050a30c34 : FAILURE in 4m 38s