this derivation will be built:
  /nix/store/6n6n6n1am3sc81whs0whlv3wybfbwy61-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/6n6n6n1am3sc81whs0whlv3wybfbwy61-bcachefs-module-7.0.0-31-generic.drv'...