these 2 derivations will be built:
  /nix/store/pcf1nsll71p3drhpkm3snwgqmbq57z25-nix-grpc-store-0.2.3.drv
  /nix/store/sykmim8zxcfvl3cbyf1fr9dnw1936ah8-nix-grpc-store-exit-stress.drv