structuredAttrs is enabled

trying https://static.crates.io/crates/mac-addr/0.3.0/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   9326 100   9326   0      0 576.0k      0                              0
100   9326 100   9326   0      0 572.3k      0                              0
100   9326 100   9326   0      0 568.9k      0                              0