[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/c98b4e2fb30b410fbd46868681ddf3... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/91d7d4a29aae4bee8754bae21afec81b : SUCCESS in 4m 31s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/54fef91198a74971809fc6f40669b1ff : SUCCESS in 4m 04s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/74fe7afe11514145b084fb1348cb004c : FAILURE in 3m 20s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/afafbf496f6241eeba02d0710eb965cb : FAILURE in 2m 48s