[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/f5f1b843ac9943ffbcdaf951371bb0... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7fe143c917cc4e9f96581f8d14e5679d : SUCCESS in 3m 24s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/be60a54c56454411be9cdd714596be0c : FAILURE in 3m 51s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/54de578f91854950aa2900d2dac0993c : SUCCESS in 3m 56s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/349e38b9c03d4b6ca13fffb45dcab71e : SUCCESS in 4m 14s