this derivation will be built:
  /nix/store/fl5npl04kb5hv8n75635jiy4iv82fi32-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/fl5npl04kb5hv8n75635jiy4iv82fi32-bcachefs-module-7.0.0-30-generic.drv'...