this derivation will be built:
  /nix/store/sl9jkqzkk2dph5ynswa0764b730djgn5-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/sl9jkqzkk2dph5ynswa0764b730djgn5-bcachefs-module-7.0.0-31-generic.drv'...