these 2 derivations will be built:
  /nix/store/diyhrcxkxdbmil4kgprl79yl01j7jiam-nix-grpc-store-0.2.3.drv
  /nix/store/swawrlfvlsgwy1ghcd7ahbdgwyxqzqi4-nix-grpc-store-dispatcher.drv