these 2 derivations will be built:
  /nix/store/0388vffl92rd7z7sdwcyi9af6x1rsi33-amp-linux-x64.drv
  /nix/store/2m2h5d2314vcwzknyxnrgc2v7i8pzcd9-amp-0.0.1786666234-gf5184d.drv