these 2 derivations will be built:
  /nix/store/5d3b9cd57r5d8c2cmdnvq1b46f5jr2j3-nix-grpc-store-0.2.3.drv
  /nix/store/ckz41cd1rpvhwiyxlw0cmlr7rafiaam3-nix-grpc-store-exit-stress.drv