this derivation will be built:
  /nix/store/piy574a7jp93sgyr28dyzjvrw7sai1sd-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/piy574a7jp93sgyr28dyzjvrw7sai1sd-bcachefs-module-7.0.0-29-generic.drv'...