these 2 derivations will be built:
  /nix/store/5rwpsr316s85ihad50j7mzyaswzlwpcm-amp-linux-x64.drv
  /nix/store/sv1lzvqix581vpbbbfnb6nh446qbk7r8-amp-0.0.1787515258-g1cbe6b.drv