this derivation will be built:
  /nix/store/x8jlkbx92wg1jk2lr4927hcsxbd4a7x9-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/x8jlkbx92wg1jk2lr4927hcsxbd4a7x9-bcachefs-module-7.0.0-29-generic.drv'...