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

Build failed. https://zuul.opendev.org/t/openstack/buildset/1d49f99088f64dea9ea9287fde6ebb... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/cfec9f3107944b07adf572c80cfbcaf8 : FAILURE in 3m 14s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d31430bd59674e36afcd8e48fcfe1916 : SUCCESS in 3m 21s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ac053cf375d94b58b10114e44d5d1a2a : SUCCESS in 6m 49s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f0e83c7d5c024199940f0695bb6db5ef : SUCCESS in 3m 19s