these 2 derivations will be built:
  /nix/store/nydfy3431f2rhl5zfyp7rjl487n7mjhn-nix-grpc-store-0.1.0.drv
  /nix/store/8xvpgz1hb76clx1rypwnpjyx4gklhs2a-nix-grpc-store-exit-stress.drv