these 2 derivations will be built:
  /nix/store/s1b1jsncxnwkd3k2008sqymnr6sin4dn-nix-grpc-store-0.1.0.drv
  /nix/store/zwarbxv8apc6fnlw8lrsgdnkbkfsrfjh-nix-grpc-store-exit-stress.drv