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

Build failed. https://zuul.opendev.org/t/openstack/buildset/a7837cee35be494dae47b09fa6c5e8... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/50b9a7fb614c46c89526491161a13328 : FAILURE in 3m 24s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/82a0840926aa46ddb343ab69c44b9ab7 : SUCCESS in 3m 28s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2a1f63259dc34f75933c1c0968027939 : SUCCESS in 6m 57s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f0eacfce340440bda3720a8a91dfd318 : SUCCESS in 3m 34s