these 2 derivations will be built:
  /nix/store/yvjxz5jjx3f2mhh91dq60ng8xckfbs03-nix-grpc-store-0.2.3.drv
  /nix/store/297zzvhif1l2k8y3vfnv98dv25md8bi5-nix-grpc-store-exit-stress.drv