this derivation will be built:
  /nix/store/9v41bq8d74q14299jaq1yh1fks8vhhaa-bcachefs-module-7.0.0-34-generic.drv
building '/nix/store/9v41bq8d74q14299jaq1yh1fks8vhhaa-bcachefs-module-7.0.0-34-generic.drv'...