Build failed. https://zuul.opendev.org/t/openstack/buildset/00708b14ce7644a99bb98f5a6bfa66c5 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ab06cf3327a04f8cab6cdcda675ff8d2 : SUCCESS in 3m 29s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/1a2be38318094f6fad3b308ee49a5583 : SUCCESS in 4m 23s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ab505f3abd6940988e8c500644ba46c3 : SUCCESS in 4m 26s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3a95e1aa452346459c487bac9faedcb0 : FAILURE in 3m 55s