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

Build failed. https://zuul.opendev.org/t/openstack/buildset/5cb66306e5c54d6ea7d3843fd63cfc... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/257aad9cc4424fe5adc73236efb65a53 : SUCCESS in 8m 07s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/04fae85755744ab895ab24bd0f68d927 : FAILURE in 3m 33s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0189a1d60f354a2a88a266e006a9aa15 : SUCCESS in 3m 12s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/65b8a8d2a0264ebe9022f70ecd198039 : SUCCESS in 4m 03s