[Openstack-stable-maint] Stable check of openstack/oslo.log for ref refs/heads/stable/train failed

Build failed. https://zuul.opendev.org/t/openstack/buildset/e708d65106d748d0a529b551bdc6cc... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/0d3694d2714549df998ec7d2524ea91f : SUCCESS in 4m 40s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/0a527347aa79405393a24ce3a0e3a4ed : SUCCESS in 4m 46s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/9b4d4827a1834437910812b09edc929b : FAILURE in 5m 27s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a3ed354389374bb8ba36df5bcb38fc57 : FAILURE in 3m 38s