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

Build failed. https://zuul.opendev.org/t/openstack/buildset/ce4b2309cafd4cb0b8289512f16574... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d99d49f21a774a0d80149cf878f06d48 : SUCCESS in 12m 13s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/cbd46a27bda34461afc3cd40ecdd1804 : TIMED_OUT in 41m 46s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/68c1556f49394d8ab22cff6bb608bb07 : SUCCESS in 16m 43s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/7967357774d74af5a059fee2e6f9b20c : SUCCESS in 15m 41s