[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/5a968691a0c542fb8061abf34c233738 : SUCCESS in 4m 30s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c52e5dd64b8142a99a170a4bf9b6f827 : SUCCESS in 3m 22s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/935df7be26bb4167a20cfbdb099d4389 : FAILURE in 5m 54s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a67337dca61c40cb8b10e42334bd8315 : FAILURE in 4m 00s