Build failed. https://zuul.opendev.org/t/openstack/buildset/26aa0dcfc71c492a9c1169ec78ad6324 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/00402f3bddec4a74b3fe1924d800ba19 : SUCCESS in 2m 59s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/cd48d6787ff940459f8f4bb8a4887e6f : FAILURE in 3m 50s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/aa2fead5f75a487ea46594543d69a944 : SUCCESS in 3m 08s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e853809486e74125bd20e75bee0400ad : FAILURE in 2m 21s