these 2 derivations will be built:
  /nix/store/j429pyzv8jwnbiq4hgp4h488pjv5zsq1-nix-grpc-store-0.1.0.drv
  /nix/store/lv1kphmv3z2wmlvnjcgmg8grv6bwc2qw-nix-grpc-store-exit-stress.drv