---

yaml
---
r: 227639
b: refs/heads/try
c: d4c3708
h: refs/heads/master
i:
  227637: 0562067
  227635: 6a60736
  227631: c3002bb
v: v3

Author: GuillaumeGomez

[refs]

@@ -1,7 +1,7 @@
 ---
 refs/heads/master: aca2057ed5fb7af3f8905b2bc01f72fa001c35c8
 refs/heads/snap-stage3: 1af31d4974e33027a68126fa5a5a3c2c6491824f
-refs/heads/try: b4481e68deeffc9e6cf4648d10c51750adbb4c3b
+refs/heads/try: d4c37088ca873a23e58d512d9418f59056477226
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/tags/release-0.2: c870d2dffb391e14efb05aa27898f1f6333a9596
 refs/tags/release-0.3: b5f0d0f648d9a6153664837026ba1be43d3e2503

branches/try/src/librustc_typeck/diagnostics.rs

@@ -211,6 +211,47 @@ Reference:
 http://doc.rust-lang.org/reference.html#trait-objects
 "##,
 
+E0034: r##"
+The compiler doesn't know what method to call because more than one does
+have the same prototype. Example:
+
+```
+struct Test;
+
+trait Trait1 {
+    fn foo();
+}
+
+trait Trait2 {
+    fn foo();
+}
+
+impl Trait1 for Test { fn foo() {} }
+impl Trait2 for Test { fn foo() {} }
+
+fn main() {
+    Test::foo() // error, what foo() to call?
+}
+```
+
+To avoid this error, you have to keep only one of them and remove the others.
+So let's take our example and fix it:
+
+```
+struct Test;
+
+trait Trait1 {
+    fn foo();
+}
+
+impl Trait1 for Test { fn foo() {} }
+
+fn main() {
+    Test::foo() // and now that's good!
+}
+```
+"##,
+
 E0035: r##"
 You tried to give a type parameter where it wasn't needed. Bad example: