[Openstack-stable-maint] Stable check of openstack/oslo.log for ref refs/heads/stable/train failed

Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/170b894e423540f4bc4dbb7b276d19da : SUCCESS in 3m 47s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/3eb85f81ae2540728251f300a44f6af1 : SUCCESS in 4m 14s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/9ed659291c9d4cae88c39c6c0b7b44f3 : FAILURE in 4m 17s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/64b1dfe138de45f287ec7163e2b6fbef : FAILURE in 5m 39s