[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/4b28aeabe41a44888964e765849f0b... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8c16a1f281b34fd6b353883ac5f008b2 : SUCCESS in 2m 58s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/33b7438ad817420ca7b1b3372537d023 : SUCCESS in 3m 02s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/315fdbe2f71b40c7ab9389b0af74cf56 : FAILURE in 3m 09s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8ad204c2c3984cf6aaa0b8fe05480cd7 : FAILURE in 2m 58s