these 2 derivations will be built:
  /nix/store/jjfl05kz8s9bw6rldy5q6km1hyn5hxnj-nix-grpc-store-0.1.0.drv
  /nix/store/fmzspcawilfcvsyagh26m68mfyw4fbqi-nix-grpc-store-exit-stress.drv