inline better

Signed-off-by: Yoshua Wuyts <yoshuawuyts@gmail.com>

src/io/prelude.rs

@@ -1,4 +1,4 @@
-//! The I/O Prelude
+//! The async I/O Prelude
 //!
 //! The purpose of this module is to alleviate imports of many common I/O traits
 //! by adding a glob import to the top of I/O heavy modules:
@@ -8,4 +8,11 @@
 //! use async_std::io::prelude::*;
 //! ```
 
-pub use super::{BufRead, Read, Seek, Write};
+#[doc(no_inline)]
+pub use super::BufRead as _;
+#[doc(no_inline)]
+pub use super::Read as _;
+#[doc(no_inline)]
+pub use super::Seek as _;
+#[doc(no_inline)]
+pub use super::Write as _;