these 2 derivations will be built:
  /nix/store/wni28s4iq7ldmdnk1hf5i8d52y0w2s27-nix-grpc-store-0.2.3.drv
  /nix/store/pj33sv352nvnp8nk37r6fsr2zkv4sqfq-nix-grpc-store-exit-stress.drv