these 2 derivations will be built:
  /nix/store/cq2wsqijiqfd9cqrvicmabgw0x828ajp-nix-grpc-store-0.1.0.drv
  /nix/store/ssbm6zs784ik0rg1n4a116ji7qh9i0id-nix-grpc-store-dispatcher.drv