this derivation will be built:
  /nix/store/p99iaz18qz8wg4b8lnhr5qgfwmqqsjvv-bcachefs-module-7.0.0-34-generic.drv
building '/nix/store/p99iaz18qz8wg4b8lnhr5qgfwmqqsjvv-bcachefs-module-7.0.0-34-generic.drv'...