1 files changed, 18 insertions, 0 deletions
diff --git a/src/test/ui/nll/issue-21114-ebfull.rs b/src/test/ui/nll/issue-21114-ebfull.rs
new file mode 100644
index 000000000..fc4a6845a
--- /dev/null
+++ b/src/test/ui/nll/issue-21114-ebfull.rs
@@ -0,0 +1,18 @@
+// check-pass
+
+use std::collections::HashMap;
+use std::sync::Mutex;
+
+fn i_used_to_be_able_to(foo: &Mutex<HashMap<usize, usize>>) -> Vec<(usize, usize)> {
+    let mut foo = foo.lock().unwrap();
+
+    foo.drain().collect()
+}
+
+fn but_after_nightly_update_now_i_gotta(foo: &Mutex<HashMap<usize, usize>>) -> Vec<(usize, usize)> {
+    let mut foo = foo.lock().unwrap();
+
+    return foo.drain().collect();
+}
+
+fn main() {}