these 2 derivations will be built:
  /nix/store/nbhin5wbr1h1glvdgn6bwb3z2c6fy6yf-nix-grpc-store-0.1.0.drv
  /nix/store/7259ximacibdnfmhk5370b8v8a5g7iqp-nix-grpc-store-exit-stress.drv