1 files changed, 28 insertions, 0 deletions
diff --git a/tests/ui/lifetimes/unsafe-transmute-in-find-11740.rs b/tests/ui/lifetimes/unsafe-transmute-in-find-11740.rs
new file mode 100644
index 00000000000..eeecd2e9e40
--- /dev/null
+++ b/tests/ui/lifetimes/unsafe-transmute-in-find-11740.rs
@@ -0,0 +1,28 @@
+//! Regression test for https://github.com/rust-lang/rust/issues/11740
+
+//@ check-pass
+
+struct Attr {
+    name: String,
+    value: String,
+}
+
+struct Element {
+    attrs: Vec<Box<Attr>>,
+}
+
+impl Element {
+    pub unsafe fn get_attr<'a>(&'a self, name: &str) {
+        self.attrs
+            .iter()
+            .find(|attr| {
+                      let attr: &&Box<Attr> = std::mem::transmute(attr);
+                      true
+                  });
+    }
+}
+
+fn main() {
+    let element = Element { attrs: Vec::new() };
+    unsafe { let () = element.get_attr("foo"); };
+}