Build failed. https://zuul.opendev.org/t/openstack/buildset/f0e905da691d4807b3969f1298187d7d - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/dd7d00c11eef4d0a9c47e0b8b9c220b8 : SUCCESS in 3m 49s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/3e16c05f7c5b4096960bb7b4851d0490 : FAILURE in 3m 08s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/cb136a575a0342b789da68fb30ffef8b : SUCCESS in 3m 31s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/96b1bc1564134e7c926b596eb6d79196 : SUCCESS in 3m 49s