Build failed. https://zuul.opendev.org/t/openstack/buildset/61df57ed0e2b4ce3ab618536613d743d - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6ec997b1322b4588bc3085f933524e42 : FAILURE in 3m 01s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/714c292f90a74a65814ac3517fe7230e : SUCCESS in 3m 01s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/44751970f36242b9b472c801e45fd10c : SUCCESS in 3m 07s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d77342e3f25e4d2badc1c7c91a9d7cf6 : SUCCESS in 3m 26s