these 2 derivations will be built:
  /nix/store/phb3997d0a7yhpxgdcsd9jbb2jgdr5y7-nix-grpc-store-0.2.2.drv
  /nix/store/y26sbrnsr203xlfia8g5b7v3f166xc66-nix-grpc-store-exit-stress.drv