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

Build failed. https://zuul.opendev.org/t/openstack/buildset/a6460a2a32bd42ae95415f73bf6eb9... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f24cc254eba146f8b9264bfaef5b323c : FAILURE in 4m 35s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e939a337217240929daf0fd617dcb41b : SUCCESS in 5m 07s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/28a23b2801f642ae8149286452a3c133 : SUCCESS in 3m 59s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/38996a0d6048481c8891feff8e04e221 : SUCCESS in 3m 53s