this derivation will be built:
  /nix/store/7mwh240hza2hx7k6glgljny83d2zsjlg-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/7mwh240hza2hx7k6glgljny83d2zsjlg-bcachefs-module-7.0.0-31-generic.drv'...