these 2 derivations will be built:
  /nix/store/ldr7p4nd7k9ilp3b87l5szdy3nz7908b-nix-grpc-store-0.1.0.drv
  /nix/store/0hzpz0j651k8sk7w51aj6bxggh6l03i6-nix-grpc-store-exit-stress.drv