these 2 derivations will be built:
  /nix/store/x6nm2dw22bpbnhcc8ah4r35x3n4s70sz-nix-grpc-store-0.2.2.drv
  /nix/store/pj2bsis7vwbz7fih6krz87fjfm1saw08-nix-grpc-store-dispatcher.drv