introduce from_nonzero feature

diff --git a/src/libcore/num/mod.rs b/src/libcore/num/mod.rs
index 82a30864fd250a024cd7a62740dd9553769ab2ce..c4b59738478dc0faa45e92b4a1d8d24b2ff5d691 100644 (file)
--- a/src/libcore/num/mod.rs
+++ b/src/libcore/num/mod.rs
@@ -93,7 +93,7 @@ pub fn get(self) -> $Int {
 
             }
 
-            #[stable(feature = "nonzero", since = "1.28.0")]
+            #[stable(feature = "from_nonzero", since = "1.31.0")]
             impl From<$Ty> for $Int {
                 fn from(nonzero: $Ty) -> Self {
                     nonzero.0 .0