these 2 derivations will be built:
  /nix/store/f1f6n57pdhwk5ib7d5zfhvrgd0s8gv9n-amp-linux-x64.drv
  /nix/store/kszi677v9yipr2zsvgjf4cj43ys6ck9n-amp-0.0.1786551414-g7b8b6b.drv