rust-lang
diff --git a/‎tests/ui/abi/fixed_x18.arm.stderr
-2 b/‎tests/ui/abi/fixed_x18.arm.stderr
-2
diff --git a/‎tests/ui/abi/fixed_x18.i686.stderr
-2 b/‎tests/ui/abi/fixed_x18.i686.stderr
-2
diff --git a/‎tests/ui/abi/fixed_x18.riscv32.stderr
-2 b/‎tests/ui/abi/fixed_x18.riscv32.stderr
-2
diff --git a/‎tests/ui/abi/fixed_x18.riscv64.stderr
-2 b/‎tests/ui/abi/fixed_x18.riscv64.stderr
-2
diff --git a/‎tests/ui/abi/fixed_x18.rs
+2 b/‎tests/ui/abi/fixed_x18.rs
+2
diff --git a/‎tests/ui/abi/fixed_x18.x64.stderr
-2 b/‎tests/ui/abi/fixed_x18.x64.stderr
-2
@@ -2,6 +2,8 @@
 // Behavior on aarch64 is tested by tests/codegen/fixed-x18.rs.
 //
 //@ revisions: x64 i686 arm riscv32 riscv64
+//@ error-pattern: the `-Zfixed-x18` flag is not supported
+//@ dont-check-compiler-stderr
 //
 //@ compile-flags: -Zfixed-x18
 //@ [x64] needs-llvm-components: x86