Build failed. https://zuul.opendev.org/t/openstack/buildset/afb1d7aa589e469cba8c0a1119109993 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/dc17e727b12a4baabe1524a7c2adbd16 : FAILURE in 6m 36s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b45b0ae7110c44578157ed7146a20fec : SUCCESS in 7m 09s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b4422d1c5ba04e5cbcfb60bc629b09a5 : SUCCESS in 5m 42s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/246aa49df7474d748e59940dd9e9cbef : SUCCESS in 6m 12s