these 2 derivations will be built:
  /nix/store/vwx90ic7hx5d2rafiv36plkcxkv86sdk-nix-grpc-store-0.2.3.drv
  /nix/store/v0mc2xp92gm2dc1dyvbkwk5i2mb04djr-nix-grpc-store-exit-stress.drv