[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/0f1d90c0790e413c9ac647d678744c... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5d55d020cc19408597d8a028fb428553 : SUCCESS in 3m 56s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/22bcf94f0c9c42a8a519d3a66a20e627 : FAILURE in 4m 40s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f6f592d7de2149b59d71230a86ce2357 : SUCCESS in 3m 12s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ce4f96a7631949268f16f118eb5a959a : SUCCESS in 3m 38s