[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/4e321214f6904d4c9b0f25bdc739ef9f : SUCCESS in 6m 24s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/1cd683d14af74da5b1074a7183018eae : FAILURE in 12m 51s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b116d3173f4b400d9ec0ba5565a5f63b : FAILURE in 14m 18s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c756113cee9b4402b16587a629d1ef0e : SUCCESS in 14m 32s