these 2 derivations will be built:
  /nix/store/7jwkrmi49lwdlb36w7y4bwyib2v2n7gw-amp-linux-x64.drv
  /nix/store/9401qngh777drkwdc812i0hxasgg9xrz-amp-0.0.1786824065-g013933.drv