these 2 derivations will be built:
  /nix/store/ln5ii2k4rqpi0bfbs4pkm005vcnf0gb8-nix-grpc-store-0.2.3.drv
  /nix/store/y32ziv4symh6c3bhfxa3vryfr4ald8dp-nix-grpc-store-dispatcher.drv