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

Build failed. https://zuul.opendev.org/t/openstack/buildset/58e97b739be74ce58529ff1aed1978... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/44592052d3fb48228633f230f0d129b7 : SUCCESS in 3m 56s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8ae784f6a2ad49c1be72c66faae65923 : FAILURE in 3m 35s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/65b9c009a531460d8220beb67bb85561 : SUCCESS in 3m 48s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/036ccfbbc7db4aa88d5d091ae37fd6ce : SUCCESS in 4m 38s