Build failed. https://zuul.opendev.org/t/openstack/buildset/ca73fef306264da4926e10437b245589 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/040134002b5b4863bf2c8889995f204c : FAILURE in 3m 58s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7c6b8661b6d44d1383bb9e3f5ab71988 : FAILURE in 3m 36s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/4bc3f83113f24c0e9e114f6e707468b5 : FAILURE in 3m 56s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f2c4d6712575475c9e80624125b0b913 : FAILURE in 4m 37s