[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/bdfbb5f847e14f2694b99cac3b9c00... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b60190f2ce2440319507d801f2d19741 : SUCCESS in 3m 23s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/047f066fa5334b7baffa8786284719e8 : SUCCESS in 3m 37s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/38b3f590f4b04880a62ae2279071ea45 : FAILURE in 5m 03s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/26214f5ddaef4e4ca908937a287d494b : FAILURE in 3m 19s