this derivation will be built:
  /nix/store/h4fd21v2zfjkqfcqv96skf3ahkp86hrp-bcachefs-module-7.0.0-34-generic-64k.drv
building '/nix/store/h4fd21v2zfjkqfcqv96skf3ahkp86hrp-bcachefs-module-7.0.0-34-generic-64k.drv'...