these 2 derivations will be built:
  /nix/store/slgl2zhpvdspm9pq7xfaqrkq4awscyhm-amp-linux-x64.drv
  /nix/store/hdbhxkl2j6vr9kikdzjpdk5xbm9nx8fr-amp-0.0.1787155755-g62ff24.drv