Move error trait into core

library/core/src/array/mod.rs

@@ -7,6 +7,8 @@
 use crate::borrow::{Borrow, BorrowMut};
 use crate::cmp::Ordering;
 use crate::convert::{Infallible, TryFrom};
+#[cfg(not(bootstrap))]
+use crate::error::Error;
 use crate::fmt;
 use crate::hash::{self, Hash};
 use crate::iter::TrustedLen;
@@ -119,6 +121,15 @@ impl fmt::Display for TryFromSliceError {
     }
 }
 
+#[cfg(not(bootstrap))]
+#[stable(feature = "try_from", since = "1.34.0")]
+impl Error for TryFromSliceError {
+    #[allow(deprecated)]
+    fn description(&self) -> &str {
+        self.__description()
+    }
+}
+
 impl TryFromSliceError {
     #[unstable(
         feature = "array_error_internals",