this derivation will be built:
  /nix/store/iswnhyx9y1c7q0klh31xaahhgqmhhid9-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/iswnhyx9y1c7q0klh31xaahhgqmhhid9-bcachefs-module-7.0.0-39-generic.drv'...