this derivation will be built:
  /nix/store/mmgbw20l09bvw7myjh6rx99a3734csj4-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/mmgbw20l09bvw7myjh6rx99a3734csj4-bcachefs-module-7.0.0-30-generic.drv'...