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

Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6674b1d7c804482fafa084b356315f1d : SUCCESS in 5m 42s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/26d39fdc738f4af78342a10965a35b25 : FAILURE in 10m 11s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ea3c126ad75240529042dd70994bc39d : FAILURE in 9m 58s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c45999ebf1d04dc89555b9af20511331 : SUCCESS in 10m 16s