[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/08592ad98e884e60bd7fce67227c73... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/318a53d4e4854175946acb84fe8a602a : SUCCESS in 5m 02s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5b2d78753c944b87bf199d551be340b7 : SUCCESS in 4m 36s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/464d61a3ede34bffabe56a1dd67c02e7 : FAILURE in 4m 47s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/4ae09a24ec2b4a9da1f3f2338b3fda38 : FAILURE in 4m 46s