1 files changed, 17 insertions, 0 deletions
diff --git a/src/librustc/error_codes.rs b/src/librustc/error_codes.rs
index f6564f1fcd4..968b0b9f2f2 100644
--- a/src/librustc/error_codes.rs
+++ b/src/librustc/error_codes.rs
@@ -2217,6 +2217,23 @@ Examples of erroneous code:
 static X: u32 = 42;
 ```
 "##,
+
+E0734: r##"
+A stability attribute has been used outside of the standard library.
+
+Erroneous code examples:
+
+```compile_fail,E0734
+#[rustc_deprecated(since = "b", reason = "text")] // invalid
+#[stable(feature = "a", since = "b")] // invalid
+#[unstable(feature = "b", issue = "0")] // invalid
+fn foo(){}
+```
+
+These attributes are meant to only be used by the standard library and are
+rejected in your own crates.
+"##,
+
 ;
 //  E0006, // merged with E0005
 //  E0101, // replaced with E0282