Add patch for testing sysroot

Author: bjorn3

patches/0030-Add-missing-feature-gate.patch

@@ -0,0 +1,37 @@
+From baa9c656ba61633f2e5785fc47bc8f88ed2f738e Mon Sep 17 00:00:00 2001
+From: bjorn3 <17426603+bjorn3@users.noreply.github.com>
+Date: Wed, 11 Mar 2026 12:34:47 +0000
+Subject: [PATCH] Add missing feature gate
+
+---
+ coretests/benches/lib.rs | 1 +
+ coretests/tests/lib.rs   | 1 +
+ 2 file changed, 2 insertion(+)
+
+diff --git a/library/coretests/benches/lib.rs b/library/coretests/benches/lib.rs
+index 150b9b3..281aa75 100644
+--- a/library/coretests/benches/lib.rs
++++ b/library/coretests/benches/lib.rs
+@@ -8,6 +8,7 @@
+ #![feature(iter_array_chunks)]
+ #![feature(iter_next_chunk)]
+ #![feature(iter_advance_by)]
++#![feature(num_internals)]
+ #![feature(uint_gather_scatter_bits)]
+ 
+ extern crate test;
+diff --git a/library/coretests/tests/lib.rs b/library/coretests/tests/lib.rs
+index ecdb687..ab2cf77 100644
+--- a/library/coretests/tests/lib.rs
++++ b/library/coretests/tests/lib.rs
+@@ -88,6 +88,7 @@
+ #![feature(non_exhaustive_omitted_patterns_lint)]
+ #![feature(nonzero_from_str_radix)]
+ #![feature(numfmt)]
++#![feature(num_internals)]
+ #![feature(one_sided_range)]
+ #![feature(panic_internals)]
+ #![feature(pattern)]
+-- 
+2.43.0
+