these 2 derivations will be built:
  /nix/store/fij09wbhapk8xrxm1wq6kz3y1ca2dr34-nix-grpc-store-0.2.2.drv
  /nix/store/h9vg9br63gnvwhyavhi0qk2rdp5mfipg-nix-grpc-store-exit-stress.drv