2 files changed, 17 insertions, 19 deletions
diff --git a/tests/ui/statics/nested_thread_local.rs b/tests/ui/statics/nested_thread_local.rs
index 10e0a3420d9..a512016335a 100644
--- a/tests/ui/statics/nested_thread_local.rs
+++ b/tests/ui/statics/nested_thread_local.rs
@@ -1,24 +1,14 @@
-// Check that nested statics in thread locals are
-// duplicated per thread.
+// Check that we forbid nested statics in `thread_local` statics.
 
 #![feature(const_refs_to_cell)]
 #![feature(thread_local)]
 
-//@run-pass
-
 #[thread_local]
-static mut FOO: &mut u32 = &mut 42;
-
-fn main() {
-    unsafe {
-        *FOO = 1;
-
-        let _ = std::thread::spawn(|| {
-            assert_eq!(*FOO, 42);
-            *FOO = 99;
-        })
-        .join();
-
-        assert_eq!(*FOO, 1);
-    }
-}
+static mut FOO: &u32 = {
+    //~^ ERROR: does not support implicit nested statics
+    // Prevent promotion (that would trigger on `&42` as an expression)
+    let x = 42;
+    &{ x }
+};
+
+fn main() {}
diff --git a/tests/ui/statics/nested_thread_local.stderr b/tests/ui/statics/nested_thread_local.stderr
new file mode 100644
index 00000000000..30c742626fa
--- /dev/null
+++ b/tests/ui/statics/nested_thread_local.stderr
@@ -0,0 +1,8 @@
+error: #[thread_local] does not support implicit nested statics, please create explicit static items and refer to them instead
+  --> $DIR/nested_thread_local.rs:7:1
+   |
+LL | static mut FOO: &u32 = {
+   | ^^^^^^^^^^^^^^^^^^^^
+
+error: aborting due to 1 previous error
+