structuredAttrs is enabled trying https://static.crates.io/crates/mac-addr/0.3.0/download % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 0 0 0 0 0 0 0 0 0 100 9326 100 9326 0 0 20637 0 0 100 9326 100 9326 0 0 20633 0 0 100 9326 100 9326 0 0 20630 0 0