these 2 derivations will be built:
  /nix/store/x2whaj9aps7jrfg2gjx92ly07y26b9dk-nix-grpc-store-0.1.0.drv
  /nix/store/33z6v7g5ilbardnzza9mx1wx33wsk898-nix-grpc-store-exit-stress.drv