[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/9ea6f2722e64435790ecb6dc07844e... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/72f06f7ee73345dd855e1d9ece873ff0 : SUCCESS in 3m 01s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/395ff93e99db4debb3989eba5a8d5c25 : SUCCESS in 3m 43s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/fea0d288d17c4de3af0545d22c1914ca : FAILURE in 3m 01s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1668cae771154145abc9749e1aa2fc8d : FAILURE in 2m 46s