1 files changed, 19 insertions, 0 deletions

diff --git a/tests/ui/issues/issue-42796.rs b/tests/ui/issues/issue-42796.rs
new file mode 100644
index 000000000..5e83a1cd6
--- /dev/null
+++ b/tests/ui/issues/issue-42796.rs
@@ -0,0 +1,19 @@
+pub trait Mirror<Smoke> {
+    type Image;
+}
+
+impl<T, Smoke> Mirror<Smoke> for T {
+    type Image = T;
+}
+
+pub fn poison<S>(victim: String) where <String as Mirror<S>>::Image: Copy {
+    loop { drop(victim); }
+}
+
+fn main() {
+    let s = "Hello!".to_owned();
+    let mut s_copy = s;
+    s_copy.push_str("World!");
+    "0wned!".to_owned();
+    println!("{}", s); //~ ERROR borrow of moved value
+}