this derivation will be built:
  /nix/store/v1afr96qrwa0vwh0706ww0kwkcn3glpp-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/v1afr96qrwa0vwh0706ww0kwkcn3glpp-bcachefs-module-7.0.0-39-generic.drv'...