these 2 derivations will be built:
  /nix/store/hc90g3j7grqili8vh21338s1rg737kh9-nix-grpc-store-0.2.3.drv
  /nix/store/s7l2lj69xm809ngzvm2id23w58rnli5b-nix-grpc-store-dispatcher.drv