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

Build failed. https://zuul.opendev.org/t/openstack/buildset/3295445b3cf6464783a61856824b2c... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5a49560fcaea44f3839d830d73a6a72f : FAILURE in 6m 03s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/dcadb7c4e97d46b28f4806ae606e2b72 : SUCCESS in 3m 40s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b88c627973f14c86ba031fa114105a1d : SUCCESS in 3m 16s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/81f2edd064d4467a948a19a805c210ca : SUCCESS in 3m 51s