these 2 derivations will be built:
  /nix/store/w73w2g8x7ds3bcxv46a7z3k21w14wjc2-nix-grpc-store-0.2.0.drv
  /nix/store/lmsm3690v8mv17ifa48ghbfm8pz0046c-nix-grpc-store-dispatcher.drv