structuredAttrs is enabled

trying https://static.crates.io/crates/servo_arc/0.5.0/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  18687 100  18687   0      0 436.0k      0                              0
100  18687 100  18687   0      0 435.5k      0                              0
100  18687 100  18687   0      0 435.0k      0                              0