these 2 derivations will be built:
  /nix/store/3yqkik3v9p2ak9ix6ngfyrfwc2p6gid3-nix-grpc-store-0.2.1.drv
  /nix/store/mh48vsm11hx0hyl48l22ymfy5s3nwvr9-nix-grpc-store-exit-stress.drv