Build failed. https://zuul.opendev.org/t/openstack/buildset/09e75f252dc54a1cb64d15d5c0e9cc1c - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/002413d0679a4a5c9e9f0619ded0b573 : SUCCESS in 4m 10s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ebd36f13f8474b918f0de74a5d0de8b9 : FAILURE in 4m 54s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e99d4e84fdd648dcafe3b06685d2af2d : SUCCESS in 4m 08s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/16da0bf163b14b4d9597f78d301e7597 : FAILURE in 3m 17s