1 files changed, 37 insertions, 0 deletions
diff --git a/tests/ui/async-await/issue-74072-lifetime-name-annotations.rs b/tests/ui/async-await/issue-74072-lifetime-name-annotations.rs
new file mode 100644
index 00000000000..95683241aba
--- /dev/null
+++ b/tests/ui/async-await/issue-74072-lifetime-name-annotations.rs
@@ -0,0 +1,37 @@
+// edition:2018
+#![feature(async_closure)]
+use std::future::Future;
+
+// test the quality of annotations giving lifetimes names (`'1`) when async constructs are involved
+
+pub async fn async_fn(x: &mut i32) -> &i32 {
+    let y = &*x;
+    *x += 1; //~ ERROR cannot assign to `*x` because it is borrowed
+    y
+}
+
+pub fn async_closure(x: &mut i32) -> impl Future<Output=&i32> {
+    (async move || {
+        let y = &*x;
+        *x += 1; //~ ERROR cannot assign to `*x` because it is borrowed
+        y
+    })()
+}
+
+pub fn async_closure_explicit_return_type(x: &mut i32) -> impl Future<Output=&i32> {
+    (async move || -> &i32 {
+        let y = &*x;
+        *x += 1; //~ ERROR cannot assign to `*x` because it is borrowed
+        y
+    })()
+}
+
+pub fn async_block(x: &mut i32) -> impl Future<Output=&i32> {
+    async move {
+        let y = &*x;
+        *x += 1; //~ ERROR cannot assign to `*x` because it is borrowed
+        y
+    }
+}
+
+fn main() {}