structuredAttrs is enabled

trying https://static.crates.io/crates/arrow-ipc/58.3.0/download
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed
100 127.9k 100 127.9k   0      0  6.21M      0                              0