Build failed. https://zuul.opendev.org/t/openstack/buildset/75e98b7ee8cf4e5a8402cd83ca5455b7 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/acf9d8ac92a34457ac5b519286d70399 : SUCCESS in 7m 36s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/dc56353846df487a9915eacc3de7f89c : SUCCESS in 6m 46s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2da5c04de6a04bd3af1ab0e04c2adf2c : SUCCESS in 4m 04s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/88ca97a744ec495883b7d376f9546310 : FAILURE in 4m 13s