fix some stability annotations

Author: Lukas Markeffsky

core/src/array/mod.rs

@@ -2,7 +2,7 @@
 //!
 //! *[See also the array primitive type](array).*
 
-#![stable(feature = "core_array", since = "1.36.0")]
+#![stable(feature = "core_array", since = "1.35.0")]
 
 use crate::borrow::{Borrow, BorrowMut};
 use crate::cmp::Ordering;
@@ -154,10 +154,11 @@ pub const fn from_mut<T>(s: &mut T) -> &mut [T; 1] {
 
 /// The error type returned when a conversion from a slice to an array fails.
 #[stable(feature = "try_from", since = "1.34.0")]
+#[rustc_allowed_through_unstable_modules]
 #[derive(Debug, Copy, Clone)]
 pub struct TryFromSliceError(());
 
-#[stable(feature = "core_array", since = "1.36.0")]
+#[stable(feature = "core_array", since = "1.35.0")]
 impl fmt::Display for TryFromSliceError {
     #[inline]
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {

core/src/char/mod.rs

@@ -18,7 +18,7 @@
 //! functions that convert various types to `char`.
 
 #![allow(non_snake_case)]
-#![stable(feature = "core_char", since = "1.2.0")]
+#![stable(feature = "rust1", since = "1.0.0")]
 
 mod convert;
 mod decode;

std/src/lib.rs

@@ -481,7 +481,7 @@ pub mod prelude;
 
 #[stable(feature = "rust1", since = "1.0.0")]
 pub use core::any;
-#[stable(feature = "core_array", since = "1.36.0")]
+#[stable(feature = "core_array", since = "1.35.0")]
 pub use core::array;
 #[unstable(feature = "async_iterator", issue = "79024")]
 pub use core::async_iter;