structuredAttrs is enabled

trying https://static.crates.io/crates/const-str-proc-macro/1.1.0/download
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed
100   7048 100   7048   0      0 415.5k      0                              0