these 2 derivations will be built:
  /nix/store/3sww2n617ky4f1kczqr6kliqb4bv2jil-nix-grpc-store-0.1.0.drv
  /nix/store/9i8z04gql2m4dch70202p01rwqbjf954-nix-grpc-store-exit-stress.drv