this derivation will be built:
  /nix/store/h4mjmlx58lxfpwj18jziqyq04sz1prc6-bcachefs-module-7.0.0-14-generic.drv
building '/nix/store/h4mjmlx58lxfpwj18jziqyq04sz1prc6-bcachefs-module-7.0.0-14-generic.drv'...