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-rw-r--r--library/core/src/num/mod.rs3
1 files changed, 2 insertions, 1 deletions
diff --git a/library/core/src/num/mod.rs b/library/core/src/num/mod.rs
index faa41ddf13c..acfe38b7a37 100644
--- a/library/core/src/num/mod.rs
+++ b/library/core/src/num/mod.rs
@@ -1378,7 +1378,8 @@ const fn from_ascii_radix_panic(radix: u32) -> ! {
 macro_rules! from_str_int_impl {
     ($signedness:ident $($int_ty:ty)+) => {$(
         #[stable(feature = "rust1", since = "1.0.0")]
-        impl FromStr for $int_ty {
+        #[rustc_const_unstable(feature = "const_try", issue = "74935")]
+        impl const FromStr for $int_ty {
             type Err = ParseIntError;
 
             /// Parses an integer from a string slice with decimal digits.