[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/0c24f2de958341448d148ab3446eb3... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b047fc6587d444bda46fb4b4ba2c3678 : SUCCESS in 3m 30s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/04c026f600f24c67b1c658fa281a2840 : FAILURE in 4m 25s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/dbe0d055fad54657a8f03ce3c32cc341 : SUCCESS in 3m 59s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f701177fa9334814a076336d4305cc31 : SUCCESS in 3m 36s