these 2 derivations will be built:
  /nix/store/3dpa8rw44m24c5200qdrr9jjidp59npl-amp-linux-x64.drv
  /nix/store/fmcsjl5rvj5r8sls6qad8rj78pvbhcpc-amp-0.0.1787674203-g8784ca.drv