structuredAttrs is enabled

trying https://static.crates.io/crates/proc-macro-error-attr/1.0.4/download
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed
100   7971 100   7971   0      0 455.1k      0                              0