[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/e7257106836d4a6599b5d155812a1e... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/910729dbf88a464d8c3cc5426579a814 : SUCCESS in 3m 51s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8cc100abcb0e4bc99162c70860f63825 : SUCCESS in 4m 15s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/40d49e23705242a0a8f7c853d167f5aa : FAILURE in 3m 15s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/9f9494d3e18948ee822260e20a5ff4d0 : FAILURE in 3m 29s