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

Build failed. https://zuul.opendev.org/t/openstack/buildset/ecebf80379654f41a14ed3af688949... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/1c351cb2d4ce4a039ce3c6b01c2e4251 : FAILURE in 3m 01s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/94aa9ec647ad4f008d30b6811b19fa99 : SUCCESS in 3m 22s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ffd3b0ad07f94130a4c460f6c8aca993 : SUCCESS in 2m 52s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/24817ca4d9de4b8ba29358b32addd1f4 : SUCCESS in 4m 43s