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

Build failed. https://zuul.opendev.org/t/openstack/buildset/9bf0ded8eeca411aaa574030698a45... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9cb67011811940ebaa8a52ea959bc079 : FAILURE in 4m 38s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/720db236b08a4f66a26d27e618bbf49e : SUCCESS in 4m 25s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/3a066505acb74c8b91aab32e83e7e53e : SUCCESS in 4m 50s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8dd82cf39c1a436cb1b44a9aa17d2ab7 : SUCCESS in 3m 52s