---

yaml
---
r: 217581
b: refs/heads/tmp
c: 2881e83
h: refs/heads/master
i:
  217579: 771e6cb
v: v3

Author: GuillaumeGomez

[refs]

@@ -25,7 +25,7 @@ refs/tags/0.11.0: e1247cb1d0d681be034adb4b558b5a0c0d5720f9
 refs/tags/0.12.0: f0c419429ef30723ceaf6b42f9b5a2aeb5d2e2d1
 refs/heads/beta: 2ad26e850ed5dfedda8c96d7315aee50145ceedd
 refs/tags/1.0.0-alpha: e42bd6d93a1d3433c486200587f8f9e12590a4d7
-refs/heads/tmp: a481c4ecdc95bf9247f262334f288ff78001ff6c
+refs/heads/tmp: 2881e83c96c6f35fdc6741bbb3f951507ef74ca5
 refs/tags/1.0.0-alpha.2: 4c705f6bc559886632d3871b04f58aab093bfa2f
 refs/tags/homu-tmp: a5286998df566e736b32f6795bfc3803bdaf453d
 refs/tags/1.0.0-beta: 8cbb92b53468ee2b0c2d3eeb8567005953d40828

branches/tmp/src/librustc_typeck/diagnostics.rs

@@ -1600,6 +1600,42 @@ impl Copy for &'static Bar { } // error
 ```
 "##,
 
+E0207: r##"
+You passed an unused type parameter when implementing a trait
+on an object. Erroneous code example:
+
+```
+trait MyTrait {
+    fn get(&self) -> usize;
+}
+
+struct Foo;
+
+impl<T> MyTrait for Foo {
+    fn get(&self) -> usize {
+        0
+    }
+}
+```
+
+Please check your object definition and remove unused type
+parameter(s). Example:
+
+```
+trait MyTrait {
+    fn get(&self) -> usize;
+}
+
+struct Foo;
+
+impl MyTrait for Foo {
+    fn get(&self) -> usize {
+        0
+    }
+}
+```
+"##,
+
 E0211: r##"
 You used an intrinsic function which doesn't correspond to its
 definition. Erroneous code example:
@@ -1878,7 +1914,6 @@ register_diagnostics! {
     E0196, // cannot determine a type for this closure
     E0203, // type parameter has more than one relaxed default bound,
            // and only one is supported
-    E0207, // type parameter is not constrained by the impl trait, self type, or predicate
     E0208,
     E0209, // builtin traits can only be implemented on structs or enums
     E0210, // type parameter is not constrained by any local type