From 44853fa3e8740f2abcff8b632a9265e7d0c3060f Mon Sep 17 00:00:00 2001
From: Willem Olding <willemolding@gmail.com>
Date: Wed, 10 Apr 2024 20:54:13 +1000
Subject: [PATCH] fix broken echo example

---
 tower-cartesi/examples/echo.rs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tower-cartesi/examples/echo.rs b/tower-cartesi/examples/echo.rs
index dcb2eb1..a4f076f 100644
--- a/tower-cartesi/examples/echo.rs
+++ b/tower-cartesi/examples/echo.rs
@@ -1,12 +1,14 @@
+use futures_util::FutureExt;
 use std::env;
 use std::error::Error;
 use std::future::Future;
 use std::pin::Pin;
 use std::task::{Context, Poll};
-use futures_util::FutureExt;
 
 use tower_cartesi::{listen_http, Request, Response};
-use tower_service::{BoxError, Service};
+use tower_service::Service;
+
+type BoxError = Box<dyn Error + Send + Sync>;
 
 #[tokio::main]
 async fn main() -> Result<(), BoxError> {