structuredAttrs is enabled

trying https://static.crates.io/crates/string_cache_codegen/0.6.1/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   8968 100   8968   0      0 159.7k      0                              0
100   8968 100   8968   0      0 159.5k      0                              0
100   8968 100   8968   0      0 159.0k      0                              0