this derivation will be built:
  /nix/store/zj1jx9h567s39blchq11p5rrsyrp5hqb-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/zj1jx9h567s39blchq11p5rrsyrp5hqb-bcachefs-module-7.0.0-39-generic.drv'...