1 files changed, 21 insertions, 0 deletions
diff --git a/tests/ui/borrowck/issue-29166.rs b/tests/ui/borrowck/issue-29166.rs
new file mode 100644
index 000000000..ca819ba39
--- /dev/null
+++ b/tests/ui/borrowck/issue-29166.rs
@@ -0,0 +1,21 @@
+// run-pass
+// This test ensures that vec.into_iter does not overconstrain element lifetime.
+
+pub fn main() {
+    original_report();
+    revision_1();
+    revision_2();
+}
+
+fn original_report() {
+    drop(vec![&()].into_iter())
+}
+
+fn revision_1() {
+    // below is what above `vec!` expands into at time of this writing.
+    drop(<[_]>::into_vec(::std::boxed::Box::new([&()])).into_iter())
+}
+
+fn revision_2() {
+    drop((match (Vec::new(), &()) { (mut v, b) => { v.push(b); v } }).into_iter())
+}