these 2 derivations will be built:
  /nix/store/zav4rhbivmbhj4j7scv8j929k06v53ww-nix-grpc-store-0.1.0.drv
  /nix/store/jixyfxdy9xizbi4q0xiq5nrabycfnr93-nix-grpc-store-exit-stress.drv