[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/968d4299e26841fe88d9e13157c3be71 : SUCCESS in 6m 15s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/25ac371671b349abb75924b69fe9d304 : SUCCESS in 6m 46s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/05027d4147924989999ee163f2d605be : FAILURE in 6m 58s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5b1520f13a6047698bd292b6796c5c90 : FAILURE in 8m 35s