remove pat2021

[rust.git] / library / std / src / num.rs

diff --git a/library/std/src/num.rs b/library/std/src/num.rs
index ac3b055cdb0506d4d26fd3a3495d8cdbf1301a87..0f1c59626859411ee501d47abe7715d19c63ff02 100644 (file)
--- a/library/std/src/num.rs
+++ b/library/std/src/num.rs
@@ -22,7 +22,12 @@
 #[stable(feature = "nonzero", since = "1.28.0")]
 pub use core::num::{NonZeroU128, NonZeroU16, NonZeroU32, NonZeroU64, NonZeroU8, NonZeroUsize};
 
-#[stable(feature = "int_error_matching", since = "1.47.0")]
+#[unstable(
+    feature = "int_error_matching",
+    reason = "it can be useful to match errors when making error messages \
+              for integer parsing",
+    issue = "22639"
+)]
 pub use core::num::IntErrorKind;
 
 #[cfg(test)]