these 2 derivations will be built:
  /nix/store/swza0fdsf65ymh3qi6d0i73fafsc54z7-nix-grpc-store-0.2.3.drv
  /nix/store/s63pj50wv60bzll83f7fa94cjkmn4i6a-nix-grpc-store-exit-stress.drv