these 2 derivations will be built:
  /nix/store/8fb0f2xqqx51j19rpgn0kw5cwhq9vvvw-amp-linux-x64.drv
  /nix/store/qdajpgin70ddpa76spc1iaw6yxx3yppa-amp-0.0.1787452178-g47c366.drv