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

Build failed. https://zuul.opendev.org/t/openstack/buildset/877d3a1447d64761b7381007b076cf... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b49d6224b2824fcfb1341e9475e89841 : SUCCESS in 5m 26s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b9daf84e5e264a948491bb920884675a : SUCCESS in 4m 17s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/01ddbfa452514a3d84212c84ccee0d2e : FAILURE in 3m 55s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/0218c1a63cdd4509acec1d112c70614b : FAILURE in 3m 33s