these 2 derivations will be built:
  /nix/store/q3p4kx93z1mjv8hc86z7s09slrmwygqm-nix-grpc-store-0.2.2.drv
  /nix/store/q00z7lyg9392rikd5p77fl4c9bg9w7gf-nix-grpc-store-dispatcher.drv