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

Build failed. https://zuul.opendev.org/t/openstack/buildset/007a8bc542dc4e4891354d639d981d... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/731be57ee1ab43e6a56fa30df4b785cc : FAILURE in 3m 22s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f1062f32fd904a1794577edb8d31845c : SUCCESS in 5m 33s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/92823d7bf27641cbbe2d225af8c31cb4 : SUCCESS in 3m 39s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/7ff0f896b1484da08807d1cf46299465 : SUCCESS in 3m 20s