these 2 derivations will be built:
  /nix/store/53802j7pb97k009fav7am5gv63gdsmzq-nix-grpc-store-0.2.3.drv
  /nix/store/ajpq96hhgcizjjcwhb9dc9dnnxqhgdhx-nix-grpc-store-dispatcher.drv