[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/55df19afaa5441808df9d6a7308203... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d9bd7440a38e4c37ba05dbb55ae78e36 : SUCCESS in 3m 30s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d41d67cf56584aefaeaf200587875199 : FAILURE in 3m 22s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f07f1c7bdff94255884020322cabbc7c : SUCCESS in 3m 26s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f0228f508868450597ffacd61a265999 : SUCCESS in 3m 38s