diff --git a/library/Cargo.lock b/library/Cargo.lock
index 862d0938d379..095af5cc0d28 100644
--- a/library/Cargo.lock
+++ b/library/Cargo.lock
@@ -352,7 +352,6 @@ name = "std_detect"
 version = "0.1.5"
 dependencies = [
  "cfg-if",
- "compiler_builtins",
  "libc",
  "rustc-std-workspace-alloc",
  "rustc-std-workspace-core",
diff --git a/library/stdarch b/library/stdarch
index 5c1c436524c0..1b4d15df1207 160000
--- a/library/stdarch
+++ b/library/stdarch
@@ -1 +1 @@
-Subproject commit 5c1c436524c0bbc8db83577f42f8bea9006a7b75
+Subproject commit 1b4d15df12079504942d0a3f1030b2039b8a776c