1 files changed, 17 insertions, 0 deletions
diff --git a/tests/ui/transmutability/primitives/bool-mut.rs b/tests/ui/transmutability/primitives/bool-mut.rs
new file mode 100644
index 000000000..49dbe90e4
--- /dev/null
+++ b/tests/ui/transmutability/primitives/bool-mut.rs
@@ -0,0 +1,17 @@
+// check-fail
+//[next] compile-flags: -Ztrait-solver=next
+
+#![feature(transmutability)]
+mod assert {
+    use std::mem::{Assume, BikeshedIntrinsicFrom};
+    pub struct Context;
+
+    pub fn is_transmutable<Src, Dst>()
+    where
+        Dst: BikeshedIntrinsicFrom<Src, Context, { Assume::SAFETY }>
+    {}
+}
+
+fn main() {
+    assert::is_transmutable::<&'static mut bool, &'static mut u8>() //~ ERROR cannot be safely transmuted
+}