these 2 derivations will be built:
  /nix/store/61cg9lsb7zhksmxmp7wkgf14ri4kh6zb-amp-linux-x64.drv
  /nix/store/kpg1gy8ld71fj9jb2av7dxlyi2m9in3v-amp-0.0.1787443308-gaae9fa.drv