[Openstack-stable-maint] Stable check of openstack/oslo.utils for ref refs/heads/stable/train failed

Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9f97cca0ec9e4967ad60630a04c67644 : SUCCESS in 5m 57s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f1276a233cbf404b905d735afb81c06a : FAILURE in 6m 02s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d508033505de4c819997a3536ed30ac9 : SUCCESS in 5m 13s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ad4ec046eece4feaa518b8731605eb78 : SUCCESS in 6m 03s