---

yaml
---
r: 232651
b: refs/heads/try
c: 73685af
h: refs/heads/master
i:
  232649: 86b07fa
  232647: bda57d8
v: v3

Author: GuillaumeGomez

[refs]

@@ -1,7 +1,7 @@
 ---
 refs/heads/master: edeb4f1c86cbf6af8ef9874d4b3af50f721ea1b8
 refs/heads/snap-stage3: 1af31d4974e33027a68126fa5a5a3c2c6491824f
-refs/heads/try: 768111fa93ec801735f30a38c5fd2ef4774a9d3a
+refs/heads/try: 73685afb8a76148d25d17ea80d0eb26a48839f9b
 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

@@ -2774,6 +2774,22 @@ For more information see the [opt-in builtin traits RFC](https://github.com/rust
 -lang/rfcs/blob/master/text/0019-opt-in-builtin-traits.md).
 "##,
 
+E0390: r##"
+You tried to implement on an `*mut T` type. Erroneous code example:
+
+```
+struct Foo {
+    x: i32
+}
+
+impl *mut Foo {}
+// error: only a single inherent implementation marked with
+//        `#[lang = "mut_ptr"]` is allowed for the `*mut T` primitive
+```
+
+To fix this, please follow the compiler recommendations.
+"##,
+
 E0391: r##"
 This error indicates that some types or traits depend on each other
 and therefore cannot be constructed.
@@ -2928,8 +2944,6 @@ register_diagnostics! {
            // between structures
     E0377, // the trait `CoerceUnsized` may only be implemented for a coercion
            // between structures with the same definition
-    E0390, // only a single inherent implementation marked with
-           // `#[lang = \"{}\"]` is allowed for the `{}` primitive
     E0393, // the type parameter `{}` must be explicitly specified in an object
            // type because its default value `{}` references the type `Self`"
     E0399, // trait items need to be implemented because the associated