this derivation will be built:
  /nix/store/yis2qhhrvmcqkmrj93x5gq1y2yaasfhl-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/yis2qhhrvmcqkmrj93x5gq1y2yaasfhl-bcachefs-module-7.0.0-39-generic.drv'...