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

Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5f9dee61b8814143aa3c35860c4ee7dc : SUCCESS in 8m 17s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/629cda2a4c09426dbb5ea251b0819791 : SUCCESS in 7m 28s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/24785aebd19a4f3997b1545d61353b0d : SUCCESS in 8m 31s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b809b87489cf4798a757e43559ca9d3f : FAILURE in 8m 41s