1 files changed, 15 insertions, 0 deletions
diff --git a/src/test/ui/regions/regions-infer-invariance-due-to-mutability-3.rs b/src/test/ui/regions/regions-infer-invariance-due-to-mutability-3.rs
new file mode 100644
index 000000000..c1fb41bd9
--- /dev/null
+++ b/src/test/ui/regions/regions-infer-invariance-due-to-mutability-3.rs
@@ -0,0 +1,15 @@
+struct Invariant<'a> {
+    f: Box<dyn FnOnce(&mut &'a isize) + 'static>,
+}
+
+fn to_same_lifetime<'r>(b_isize: Invariant<'r>) {
+    let bj: Invariant<'r> = b_isize;
+}
+
+fn to_longer_lifetime<'r>(b_isize: Invariant<'r>) -> Invariant<'static> {
+    b_isize
+    //~^ ERROR lifetime may not live long enough
+}
+
+fn main() {
+}