Preserve export files when command options are invalid

src/main.rs

@@ -36,14 +36,14 @@ fn run() -> Result<()> {
     let cli_arguments = get_cli_arguments(env::args_os());
     let mut options = Options::from_cli_arguments(&cli_arguments)?;
     let commands = Commands::from_cli_arguments(&cli_arguments)?;
+    options.validate_against_command_list(&commands)?;
+
     let export_manager = ExportManager::from_cli_arguments(
         &cli_arguments,
         options.time_unit,
         options.sort_order_exports,
     )?;
 
-    options.validate_against_command_list(&commands)?;
-
     let mut scheduler = Scheduler::new(&commands, &options, &export_manager);
     scheduler.run_benchmarks()?;
     scheduler.print_relative_speed_comparison()?;