this derivation will be built:
  /nix/store/6a1c3khqgahpxz4vbz42y536w2sw411c-bcachefs-module-7.0.0-28-generic.drv
building '/nix/store/6a1c3khqgahpxz4vbz42y536w2sw411c-bcachefs-module-7.0.0-28-generic.drv'...