these 2 derivations will be built:
  /nix/store/s4kinm0yhm01xls7hz0nw20mwc5f0gqk-icm-web-0.10.63.drv
  /nix/store/b8wanvfrwsy6sik7m8i6sn7kbjj34d91-icm-0.10.63.drv