[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/d6278bcc696f4b33a3869b09bb08ad... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/778299096ccd447785ec639f7e274ace : SUCCESS in 5m 05s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6c644bb575dd40ad84a6067f3ba1f2cd : FAILURE in 6m 17s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b7a6854dbc0243d09689ebadcd600023 : FAILURE in 3m 34s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3b6df78900bf4535aa34a6b5c0dcfea8 : FAILURE in 2m 44s