these 2 derivations will be built:
  /nix/store/xqpcvkq2x71a5yrzpv8hj82qpv5lm00z-nix-grpc-store-0.2.3.drv
  /nix/store/3qsvwdg2w9cxpi1m3nx9i32rnixnp529-nix-grpc-store-exit-stress.drv