structuredAttrs is enabled

trying https://registry.npmjs.org/@csstools/css-calc/-/css-calc-3.2.1.tgz
  % 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  13078 100  13078   0      0 215.8k      0                              0
100  13078 100  13078   0      0 215.5k      0                              0
100  13078 100  13078   0      0 215.2k      0                              0