Fix for stability changes

src/lib.rs

@@ -51,9 +51,8 @@
 //! }
 //! ```
 #![doc(html_root_url="https://sfackler.github.io/doc")]
-#![feature(plugin, unsafe_destructor)]
+#![feature(plugin, unsafe_destructor, collections, io, core, path, std_misc)]
 #![warn(missing_docs)]
-#![allow(unstable)]
 
 #[macro_use]
 extern crate log;

tests/test.rs

@@ -1,5 +1,4 @@
-#![allow(unstable)]
-#![feature(slicing_syntax)]
+#![feature(slicing_syntax, core, collections, std_misc, io)]
 
 extern crate postgres;
 extern crate "rustc-serialize" as serialize;