chore(lib): allow deprecations in 0.12.x builds

Author: seanmonstar

src/lib.rs

@@ -3,6 +3,7 @@
 #![deny(missing_debug_implementations)]
 #![cfg_attr(test, deny(warnings))]
 #![cfg_attr(all(test, feature = "nightly"), feature(test))]
+#![allow(deprecated)]
 
 //! # hyper
 //!