this derivation will be built:
  /nix/store/fzwkiiqn52sf3nld4k666nl89mcg6wwg-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/fzwkiiqn52sf3nld4k666nl89mcg6wwg-bcachefs-module-7.0.0-29-generic.drv'...