structuredAttrs is enabled

trying https://static.crates.io/crates/macro_rules_attribute-proc_macro/0.2.3/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   8272 100   8272   0      0 479.3k      0                              0
100   8272 100   8272   0      0 476.6k      0                              0
100   8272 100   8272   0      0 474.2k      0                              0