[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/11eff15536584b819335dcaee8099ce5 : SUCCESS in 7m 55s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c300fae1f8db4f99b7dd3ffcc9e47eea : FAILURE in 7m 13s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/69866de6df7b4bef956d4694bf1753a9 : FAILURE in 7m 44s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/99981c32da5a404cb3b5e41e7c1dcf81 : FAILURE in 7m 24s