Build failed. https://zuul.opendev.org/t/openstack/buildset/313094fbf53a46989d84ee94c45f08b2 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ebc12aca90804f63bb3bda388d943bc8 : SUCCESS in 3m 42s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/cd4507c11b294c75855e28413a04d5ab : SUCCESS in 5m 01s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/46030a799ead462b9b2bd3db3733e2a1 : SUCCESS in 4m 49s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/28667cd94ef44aa785806ddc651c4784 : FAILURE in 4m 07s