diff --git a/library/stdarch/crates/core_arch/Cargo.toml b/library/stdarch/crates/core_arch/Cargo.toml
index cd83058663dc..2011b81b75a7 100644
--- a/library/stdarch/crates/core_arch/Cargo.toml
+++ b/library/stdarch/crates/core_arch/Cargo.toml
@@ -26,3 +26,6 @@ std_detect = { version = "0.*", path = "../std_detect" }
 
 [target.'cfg(all(target_arch = "x86_64", target_os = "linux"))'.dev-dependencies]
 syscalls = { version = "0.6.18", default-features = false }
+
+[lints.rust]
+unexpected_cfgs = {level = "warn", check-cfg = ['cfg(stdarch_intel_sde)'] }
\ No newline at end of file
diff --git a/library/stdarch/crates/core_arch/build.rs b/library/stdarch/crates/core_arch/build.rs
deleted file mode 100644
index fdd68f83b8dc..000000000000
--- a/library/stdarch/crates/core_arch/build.rs
+++ /dev/null
@@ -1,3 +0,0 @@
-fn main() {
-    println!("cargo::rustc-check-cfg=cfg(stdarch_intel_sde)");
-}