Build failed. https://zuul.opendev.org/t/openstack/buildset/c39eaeba42ed4f43b5d33ad1662765d0 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/47ad12ec79d64627bbd218e3219a8a39 : FAILURE in 4m 11s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/50747b48ff264bcd9b965aaf94fcd91d : SUCCESS in 4m 19s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/73abf863871145099f1135cafd8f9d3d : SUCCESS in 5m 33s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/37dd0937561e4de3ba6075b40f05aac6 : SUCCESS in 5m 15s