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

Build failed. https://zuul.opendev.org/t/openstack/buildset/0ca218aee0f444a68b46c77afacbc9... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6267e9efa12941ebb074b55d452dc089 : FAILURE in 3m 20s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/fed1f2412fb544c3ad1c30bf6c86ff14 : SUCCESS in 3m 14s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/384a6a6247ce4a6096299ec0fa2ba09b : SUCCESS in 3m 31s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/cc0b16ce78244926af080c6aa16c9a7e : SUCCESS in 5m 05s