prepare v0.5.0 release (#319)

src/lib.rs

@@ -1,3 +1,7 @@
+#![deny(warnings, missing_docs, missing_debug_implementations, rust_2018_idioms)]
+#![doc(html_root_url = "https://docs.rs/bytes/0.5.0")]
+#![no_std]
+
 //! Provides abstractions for working with bytes.
 //!
 //! The `bytes` crate provides an efficient byte buffer structure
@@ -68,10 +72,6 @@
 //! perform a syscall, which has the potential of failing. Operations on `Buf`
 //! and `BufMut` are infallible.
 
-#![deny(warnings, missing_docs, missing_debug_implementations, rust_2018_idioms)]
-#![doc(html_root_url = "https://docs.rs/bytes/0.5.0")]
-
-#![no_std]
 
 extern crate alloc;