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

Build failed. https://zuul.opendev.org/t/openstack/buildset/fa0aa8b46b3d4be3b6a57292225800... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/edaa4ba6c54f46ba954255163af244dd : FAILURE in 4m 14s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/cac5f263861f4c5c8238b4725c259419 : SUCCESS in 3m 43s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/cd6c079a8f104010aa923418bb572e05 : SUCCESS in 4m 31s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2dd55e2d7286401e85fefacb54ad1683 : SUCCESS in 4m 13s