Build failed. https://zuul.opendev.org/t/openstack/buildset/896458b24a16451787bb3e9abc243bff - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/070a9c8ccc6e473a8112a4ee02de83d6 : FAILURE in 3m 16s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/324e41da2960452e8cc348adde111232 : SUCCESS in 2m 46s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b905957967974e7f939713f0b8c0833c : SUCCESS in 3m 14s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1827963b417d47ef806c7d4f33453874 : SUCCESS in 2m 57s