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

Build failed. https://zuul.opendev.org/t/openstack/buildset/1f7977fadd5843a1b1ff78e0513311... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/228d36181a004c66be4baa84e505d72c : FAILURE in 3m 13s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c19fc37185c44420808f13658129282c : SUCCESS in 4m 30s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f14180cceb55412a945a029dcfd99a8b : SUCCESS in 3m 29s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/fbcfd0989410450eaee6815df73ce20f : SUCCESS in 6m 50s