[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/d5443cddc83d406480c5f298edee62... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7db8e7382db64ce0bf7fa933c9147dd3 : SUCCESS in 5m 13s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/50ad495dcebc4508a9e608c0734ef8c7 : FAILURE in 4m 48s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/4ac70364e7b848d086305a9dcc0e8803 : SUCCESS in 3m 31s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/baab728eef744392a306a55a0c445d0b : SUCCESS in 4m 31s