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

Build failed. https://zuul.opendev.org/t/openstack/buildset/5ebcb12a82754ab5bcffa59722b823... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e0365579db494b929b34448609e141ae : SUCCESS in 5m 39s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7827ccee892147d9835436b4e31b06a3 : SUCCESS in 4m 17s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e2c97719636a451dbfe9029555f96ba7 : SUCCESS in 4m 32s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/7487869d3f054589b24bf6c70ae7062d : FAILURE in 4m 03s