[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/f49808b778434f9a86075e43bf6680... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/fa148cdf0c5d46ab8188c638f0fe7c3a : SUCCESS in 3m 22s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ff6181146ef946f9b5330e60bd1d035d : FAILURE in 3m 26s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8a853c8e5b564ac690632cf62e4e213f : SUCCESS in 3m 40s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/55a0e089d4614ef097cbfed4c2ca481d : SUCCESS in 3m 56s