structuredAttrs is enabled

trying https://static.crates.io/crates/wasm-bindgen-test/0.3.77/download
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed
100  51074 100  51074   0      0 945.6k      0                              0