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-rw-r--r--src/libcore/num/mod.rs3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/libcore/num/mod.rs b/src/libcore/num/mod.rs
index c218713823a..7657b45f024 100644
--- a/src/libcore/num/mod.rs
+++ b/src/libcore/num/mod.rs
@@ -4773,7 +4773,8 @@ pub struct ParseIntError {
 
 #[unstable(feature = "int_error_matching",
            reason = "it can be useful to match errors when making error messages \
-                     for integer parsing")]
+                     for integer parsing",
+           issue = "22639")]
 #[derive(Debug, Clone, PartialEq, Eq)]
 #[non_exhaustive]
 pub enum IntErrorKind {