this derivation will be built:
  /nix/store/239dc773fzm6c7z3c8sgcrm9b7n7wizb-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/239dc773fzm6c7z3c8sgcrm9b7n7wizb-bcachefs-module-7.0.0-29-generic.drv'...