structuredAttrs is enabled

trying https://static.crates.io/crates/fixed-map-derive/0.9.5/download
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed
100  15085 100  15085   0      0 175.4k      0                              0