Build failed. https://zuul.opendev.org/t/openstack/buildset/1a3c0f02a2624df4bd1975276c1cd98d - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/fb5799fa3147418cbe92c17dc3af4ab3 : SUCCESS in 4m 25s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c4b1e1d2c2234b87827ee53288b2a452 : SUCCESS in 4m 09s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b5725de1b8c44f64b2b00eb9ddec2a7f : SUCCESS in 4m 18s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5d7dc324ab1d4fc8881bae00fb862da6 : FAILURE in 3m 32s