these 2 derivations will be built:
  /nix/store/cj35d85qm5rvqfqs0n32iw8ax9cmgddq-amp-linux-x64.drv
  /nix/store/x6xvbvgzzfg0rna3111ckhfnzf43n9ay-amp-0.0.1787026227-g5016f3.drv