this derivation will be built:
  /nix/store/0281p80gz658zda7z0jfh8xjf7k6k8zv-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/0281p80gz658zda7z0jfh8xjf7k6k8zv-bcachefs-module-7.0.0-29-generic.drv'...