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

Build failed. https://zuul.opendev.org/t/openstack/buildset/f5446a2202d54c2a9fd99a78cf6aad... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e3709d7e65cb4add8dc8f40ef5521b65 : FAILURE in 4m 19s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b82bbb6020e64715ac6108102c6efc3c : SUCCESS in 4m 25s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/be0e6ddcf7264e3e8249b5e14f1b86e0 : SUCCESS in 4m 25s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/24ec152018ea4f528b7a13502ad68801 : SUCCESS in 4m 16s