diff --git a/tests/ui/asm/hexagon-register-pairs.rs b/tests/ui/asm/hexagon-register-pairs.rs
index f0f77738ac83..75f296077845 100644
--- a/tests/ui/asm/hexagon-register-pairs.rs
+++ b/tests/ui/asm/hexagon-register-pairs.rs
@@ -1,4 +1,4 @@
-//@ add-core-stubs
+//@ add-minicore
 //@ compile-flags: --target hexagon-unknown-linux-musl -C target-feature=+hvx-length128b
 //@ needs-llvm-components: hexagon
 //@ ignore-backends: gcc
@@ -7,6 +7,8 @@
 #![crate_type = "lib"]
 #![no_core]
 
+//~? WARN unstable feature specified for `-Ctarget-feature`: `hvx-length128b`
+
 extern crate minicore;
 use minicore::*;
 
diff --git a/tests/ui/asm/hexagon-register-pairs.stderr b/tests/ui/asm/hexagon-register-pairs.stderr
index 6de55c34a8bc..c5974ba01f17 100644
--- a/tests/ui/asm/hexagon-register-pairs.stderr
+++ b/tests/ui/asm/hexagon-register-pairs.stderr
@@ -1,5 +1,9 @@
+warning: unstable feature specified for `-Ctarget-feature`: `hvx-length128b`
+   |
+   = note: this feature is not stably supported; its behavior can change in the future
+
 error: avoid using named labels in inline assembly
-  --> $DIR/hexagon-register-pairs.rs:30:15
+  --> $DIR/hexagon-register-pairs.rs:32:15
    |
 LL |         asm!("label1: r7:6 = combine(#2, #3)");
    |               ^^^^^^
@@ -9,7 +13,7 @@ LL |         asm!("label1: r7:6 = combine(#2, #3)");
    = note: `#[deny(named_asm_labels)]` on by default
 
 error: avoid using named labels in inline assembly
-  --> $DIR/hexagon-register-pairs.rs:33:15
+  --> $DIR/hexagon-register-pairs.rs:35:15
    |
 LL |         asm!("hexagon_label: nop");
    |               ^^^^^^^^^^^^^
@@ -17,5 +21,5 @@ LL |         asm!("hexagon_label: nop");
    = help: only local labels of the form `<number>:` should be used in inline asm
    = note: see the asm section of Rust By Example <https://doc.rust-lang.org/nightly/rust-by-example/unsafe/asm.html#labels> for more information
 
-error: aborting due to 2 previous errors
+error: aborting due to 2 previous errors; 1 warning emitted