executor: force initialization of async-io's reactor

Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>

Author: Keruspe

src/task/executor.rs

@@ -46,6 +46,8 @@ where
         let waker = async_task::waker_fn(move || unparker.unpark());
         let cx = &mut Context::from_waker(&waker);
         pin_utils::pin_mut!(future);
+        // Force initialization of async-io's Reactor before running.
+        executor.parker.park_timeout(std::time::Duration::from_millis(0));
         loop {
             if let Poll::Ready(res) = future.as_mut().poll(cx) {
                 return res;