message: do not even look for cargo metadata in 'cargo miri setup'
diff: @@ -223,6 +223,10 @@ fn main() {
  // We always setup
  let ask = subcommand != MiriCommand::Setup;
  setup(ask);
  + if subcommand == MiriCommand::Setup {
  + // Stop here.
  + return;
  + }
  // Now run the command.
  for target in list_targets(std::env::args().skip(skip)) {
  