this derivation will be built:
  /nix/store/fp7y3n54fi50194raybm23azfq053qgh-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/fp7y3n54fi50194raybm23azfq053qgh-bcachefs-module-7.0.0-29-generic.drv'...