this derivation will be built:
  /nix/store/flwgfkkms5cmjx5094bmzxlxyn3q911y-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/flwgfkkms5cmjx5094bmzxlxyn3q911y-bcachefs-module-7.0.0-30-generic.drv'...