tarruda

  var foo_future = io.async(foo, .{args});
  defer if (foo_future.cancel(io)) |resource| resource.deinit() else |_| {}

  var bar_future = io.async(bar, .{args});
  defer if (bar_future.cancel(io)) |resource| resource.deinit() else |_| {}

  const foo_result = try foo_future.await(io);
  const bar_result = try bar_future.await(io);