these 2 derivations will be built:
  /nix/store/2fzliwvysl194h7pyamy3i5n91pa7hmp-nix-grpc-store-0.1.0-beta.3.drv
  /nix/store/w3qzp5igd07l9dhycpmpmmsax3plhc95-nix-grpc-store-exit-stress.drv