diff --git a/README-zh.md b/README-zh.md
index ea46ee0a..6958f1d6 100644
--- a/README-zh.md
+++ b/README-zh.md
@@ -39,7 +39,7 @@ Monoio 就是这样一个 Runtime：它并不像 Tokio 那样通过公平调度
 
 这是一个非常简单的例子，基于 Monoio 实现一个简单的 echo 服务。运行起来之后你可以通过 `nc 127.0.0.1 50002` 来连接它。
 
-```rust
+```rust,no_run
 /// A echo example.
 ///
 /// Run the example and `nc 127.0.0.1 50002` in another shell.
@@ -66,7 +66,7 @@ async fn main() {
     }
 }
 
-async fn echo(stream: TcpStream) -> std::io::Result<()> {
+async fn echo(mut stream: TcpStream) -> std::io::Result<()> {
     let mut buf: Vec<u8> = Vec::with_capacity(8 * 1024);
     let mut res;
     loop {
diff --git a/README.md b/README.md
index ab4aec1f..07496275 100644
--- a/README.md
+++ b/README.md
@@ -36,7 +36,7 @@ Also, if you want to use io_uring, you must make sure your kernel supports it([5
 
 Here is a basic example of how to use Monoio.
 
-```rust
+```rust,no_run
 /// A echo example.
 ///
 /// Run the example and `nc 127.0.0.1 50002` in another shell.
@@ -63,7 +63,7 @@ async fn main() {
     }
 }
 
-async fn echo(stream: TcpStream) -> std::io::Result<()> {
+async fn echo(mut stream: TcpStream) -> std::io::Result<()> {
     let mut buf: Vec<u8> = Vec::with_capacity(8 * 1024);
     let mut res;
     loop {
diff --git a/monoio/Cargo.toml b/monoio/Cargo.toml
index 4b95b200..8e6f9a12 100644
--- a/monoio/Cargo.toml
+++ b/monoio/Cargo.toml
@@ -8,7 +8,7 @@ license = "MIT/Apache-2.0"
 name = "monoio"
 readme = "../README.md"
 repository = "https://github.com/bytedance/monoio"
-version = "0.1.5"
+version = "0.1.6"
 
 # common dependencies
 [dependencies]
@@ -35,7 +35,7 @@ tracing = { version = "0.1", default-features = false, features = [
 ctrlc = { version = "3", optional = true }
 
 # windows dependencies(will be added when windows support finished)
-[dependencies.windows-sys]
+[target.'cfg(windows)'.dependencies.windows-sys]
 features = ["Win32_Foundation", "Win32_Networking_WinSock"]
 version = "0.48.0"
 
diff --git a/monoio/src/builder.rs b/monoio/src/builder.rs
index 0ca43f11..81a3f6b9 100644
--- a/monoio/src/builder.rs
+++ b/monoio/src/builder.rs
@@ -102,7 +102,7 @@ impl Buildable for LegacyDriver {
             let context = crate::runtime::Context::new(blocking_handle);
             #[cfg(not(feature = "sync"))]
             let context = crate::runtime::Context::new();
-            Ok(Runtime { driver, context })
+            Ok(Runtime::new(context, driver))
         })
     }
 }
@@ -123,7 +123,7 @@ impl Buildable for IoUringDriver {
             let context = crate::runtime::Context::new(blocking_handle);
             #[cfg(not(feature = "sync"))]
             let context = crate::runtime::Context::new();
-            Ok(Runtime { driver, context })
+            Ok(Runtime::new(context, driver))
         })
     }
 }
diff --git a/monoio/src/driver/uring/lifecycle.rs b/monoio/src/driver/uring/lifecycle.rs
index c7aab154..2c1084a6 100644
--- a/monoio/src/driver/uring/lifecycle.rs
+++ b/monoio/src/driver/uring/lifecycle.rs
@@ -76,7 +76,8 @@ impl<'a> Ref<'a, Lifecycle> {
                 if let Some(data) = data.take() {
                     *ref_mut = Lifecycle::Ignored(Box::new(data));
                 } else {
-                    *ref_mut = Lifecycle::Ignored(Box::new(())); // () is a ZST, so it does not allocate
+                    *ref_mut = Lifecycle::Ignored(Box::new(())); // () is a ZST, so it does not
+                                                                 // allocate
                 };
                 return false;
             }
diff --git a/monoio/src/lib.rs b/monoio/src/lib.rs
index fee7ca7a..1a39d536 100644
--- a/monoio/src/lib.rs
+++ b/monoio/src/lib.rs
@@ -6,6 +6,7 @@
 #![feature(io_error_more)]
 #![feature(lazy_cell)]
 #![feature(slice_internals)]
+#![feature(stmt_expr_attributes)]
 
 #[macro_use]
 pub mod macros;
diff --git a/monoio/src/runtime.rs b/monoio/src/runtime.rs
index 21000168..bffd1a70 100644
--- a/monoio/src/runtime.rs
+++ b/monoio/src/runtime.rs
@@ -32,6 +32,9 @@ thread_local! {
 scoped_thread_local!(pub(crate) static CURRENT: Context);
 
 pub(crate) struct Context {
+    /// Owned task set and local run queue
+    pub(crate) tasks: TaskQueue,
+
     /// Thread id(not the kernel thread id but a generated unique number)
     pub(crate) thread_id: usize,
 
@@ -45,8 +48,6 @@ pub(crate) struct Context {
     pub(crate) waker_sender_cache:
         std::cell::RefCell<fxhash::FxHashMap<usize, flume::Sender<std::task::Waker>>>,
 
-    /// Owned task set and local run queue
-    pub(crate) tasks: TaskQueue,
     /// Time Handle
     pub(crate) time_handle: Option<TimeHandle>,
 
@@ -95,10 +96,7 @@ impl Context {
             let w = v.clone();
             self.unpark_cache.borrow_mut().insert(id, w);
             v.unpark();
-            return;
         }
-
-        panic!("thread to unpark has not been registered");
     }
 
     #[allow(unused)]
@@ -114,20 +112,21 @@ impl Context {
             // Write back to local cache
             let _ = s.send(w);
             self.waker_sender_cache.borrow_mut().insert(id, s);
-            return;
         }
-
-        panic!("sender has not been registered");
     }
 }
 
 /// Monoio runtime
 pub struct Runtime<D> {
-    pub(crate) driver: D,
     pub(crate) context: Context,
+    pub(crate) driver: D,
 }
 
 impl<D> Runtime<D> {
+    pub(crate) fn new(context: Context, driver: D) -> Self {
+        Self { context, driver }
+    }
+
     /// Block on
     pub fn block_on<F>(&mut self, future: F) -> F::Output
     where
diff --git a/monoio/src/utils/mod.rs b/monoio/src/utils/mod.rs
index c4b9f8a0..6a28eae2 100644
--- a/monoio/src/utils/mod.rs
+++ b/monoio/src/utils/mod.rs
@@ -1,10 +1,10 @@
 //! Common utils
 
+pub(crate) mod box_into_inner;
 pub(crate) mod linked_list;
 pub(crate) mod slab;
 pub(crate) mod thread_id;
 pub(crate) mod uring_detect;
-pub(crate) mod box_into_inner;
 
 mod rand;
 pub use rand::thread_rng_n;