this derivation will be built:
  /nix/store/0n5cvpmqpm3f81s6vdfqxy8b5zg81arg-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/0n5cvpmqpm3f81s6vdfqxy8b5zg81arg-bcachefs-module-7.0.0-38-generic.drv'...