these 2 derivations will be built:
  /nix/store/bq44l2ja92mybgvy59j0d1rymycp1s6w-nix-grpc-store-0.1.0.drv
  /nix/store/nrkyk6s79mkifypdvj7j4bcikvfb92f5-nix-grpc-store-exit-stress.drv