1 files changed, 29 insertions, 0 deletions

diff --git a/src/test/ui/issues/issue-17431-2.stderr b/src/test/ui/issues/issue-17431-2.stderr
new file mode 100644
index 000000000..d23fd1474
--- /dev/null
+++ b/src/test/ui/issues/issue-17431-2.stderr
@@ -0,0 +1,29 @@
+error[E0072]: recursive type `Baz` has infinite size
+  --> $DIR/issue-17431-2.rs:1:1
+   |
+LL | struct Baz { q: Option<Foo> }
+   | ^^^^^^^^^^      ----------- recursive without indirection
+   | |
+   | recursive type has infinite size
+   |
+help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `Baz` representable
+   |
+LL | struct Baz { q: Option<Box<Foo>> }
+   |                        ++++   +
+
+error[E0072]: recursive type `Foo` has infinite size
+  --> $DIR/issue-17431-2.rs:4:1
+   |
+LL | struct Foo { q: Option<Baz> }
+   | ^^^^^^^^^^      ----------- recursive without indirection
+   | |
+   | recursive type has infinite size
+   |
+help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `Foo` representable
+   |
+LL | struct Foo { q: Option<Box<Baz>> }
+   |                        ++++   +
+
+error: aborting due to 2 previous errors
+
+For more information about this error, try `rustc --explain E0072`.