use async-lock instead of async-mutex (#8)

Author: notgull

Cargo.toml

@@ -21,7 +21,7 @@ tokio03 = ["tokio03-crate"]
 [dependencies]
 async-channel = "^1.5"
 async-executor = "^1.4"
-async-mutex = "^1.4"
+async-lock = "^2.5"
 blocking = "^1.0"
 futures-lite = "^1.0"
 num_cpus = "^1.13"

src/threading.rs

@@ -1,6 +1,6 @@
 use crate::Task;
 use async_channel::{Receiver, Sender};
-use async_mutex::Mutex;
+use async_lock::Mutex;
 use futures_lite::future;
 use once_cell::sync::OnceCell;
 use std::{io, thread};