this derivation will be built:
  /nix/store/r4nldld2r1mszcsxab375i88ysmrvscy-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/r4nldld2r1mszcsxab375i88ysmrvscy-bcachefs-module-7.0.0-30-generic.drv'...