these 2 derivations will be built:
  /nix/store/1jx6d68bxnl7y7bp3vccm6qbzd8dwz9h-jscpd-5.1.0-vendor.drv
  /nix/store/rfmz5zjkm654ykpb9pw2f4m1ka45jqfz-jscpd-5.1.0.drv