these 2 derivations will be built:
  /nix/store/l9dwrpdfzxrdw204rhbmxcg7hm9ibr5v-amp-linux-x64.drv
  /nix/store/p3jklcd26d9k742xr6v2m773mcqw1k2p-amp-0.0.1789977627-g00fb3c.drv