these 2 derivations will be built:
  /nix/store/q6710jj401p6dwg36rmx448ww6708223-nix-grpc-store-0.1.0.drv
  /nix/store/9kd53m3r3ija70a5z03s18zx296s7lgi-nix-grpc-store-exit-stress.drv