---

yaml
---
r: 172221
b: refs/heads/beta
c: a8a210b
h: refs/heads/master
i:
  172219: dae1b5f
v: v3

Author: bors

[refs]

@@ -31,5 +31,5 @@ refs/heads/automation-fail: 1bf06495443584539b958873e04cc2f864ab10e4
 refs/heads/issue-18208-method-dispatch-3-quick-reject: 2009f85b9f99dedcec4404418eda9ddba90258a2
 refs/heads/batch: b5571ed71a5879c0495a982506258d5d267744ed
 refs/heads/building: 126db549b038c84269a1e4fe46f051b2c15d6970
-refs/heads/beta: 6342aa62efd1b3aa7e1bc8f834f317290b11c519
+refs/heads/beta: a8a210b57ef6b2f5f66b8798c80acfde70c9d2e7
 refs/heads/windistfix: 7608dbad651f02e837ed05eef3d74a6662a6e928

branches/beta/src/libcollections/string.rs

@@ -932,7 +932,7 @@ pub trait ToString {
     fn to_string(&self) -> String;
 }
 
-impl<T: fmt::String> ToString for T {
+impl<T: fmt::String + ?Sized> ToString for T {
     fn to_string(&self) -> String {
         use core::fmt::Writer;
         let mut buf = String::new();
@@ -994,6 +994,12 @@ mod tests {
       assert_eq!(owned.as_ref().map(|s| s.as_slice()), Some("string"));
     }
 
+    #[test]
+    fn test_unsized_to_string() {
+        let s: &str = "abc";
+        let _: String = (*s).to_string();
+    }
+
     #[test]
     fn test_from_utf8() {
         let xs = b"hello".to_vec();

branches/beta/src/libcollections/vec.rs

@@ -44,6 +44,8 @@
 //! let two = xs.pop();
 //! ```
 
+#![stable]
+
 use core::prelude::*;
 
 use alloc::boxed::Box;

branches/beta/src/libcore/fmt/mod.rs

@@ -11,6 +11,7 @@
 //! Utilities for formatting and printing strings
 
 #![allow(unused_variables)]
+#![stable]
 
 use any;
 use cell::{Cell, RefCell, Ref, RefMut};

branches/beta/src/libunicode/lib.rs

@@ -57,6 +57,7 @@ mod u_str;
 /// (inclusive) are allowed. A `char` can always be safely cast to a `u32`;
 /// however the converse is not always true due to the above range limits
 /// and, as such, should be performed via the `from_u32` function..
+#[stable]
 pub mod char {
     pub use core::char::{MAX, from_u32, from_digit};