[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/6d7cb77106f64556a36ad404d1cde1... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/aaa02cd94c944afaa01c092b15deceae : SUCCESS in 3m 13s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/1c646476746b4db197d0cb205e2ebe9a : FAILURE in 4m 48s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/76acd5cf29174b3b931df037c42f2013 : SUCCESS in 4m 11s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e2bb4d1e5fd4493ebd5f652077d4a835 : SUCCESS in 4m 03s