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

Build failed. https://zuul.opendev.org/t/openstack/buildset/03d8cedd73b74769b3df701cb59d54... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/faa6234689894128916b17d544c4e7d3 : FAILURE in 3m 11s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6256b33ce87441cf996525882e9fc2a7 : SUCCESS in 3m 29s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ab163fffe13347518252838c2aa3909b : SUCCESS in 3m 36s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/453a3d733f634036a9837f215b2961db : SUCCESS in 4m 39s