Build failed. https://zuul.opendev.org/t/openstack/buildset/709f8cec54b546959a9813b4c5eed724 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e479defe572649df83c9b9a8c558228b : SUCCESS in 6m 02s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/85e872c702894b9e81ee9dc62129dff8 : SUCCESS in 5m 27s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/7c616933dfe14295a53ce651e4ef548a : FAILURE in 6m 42s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2a07cdef179247cc94d0c021d3d39eb8 : SUCCESS in 6m 28s