1 files changed, 22 insertions, 0 deletions

diff --git a/src/test/ui/issues/issue-18107.stderr b/src/test/ui/issues/issue-18107.stderr
new file mode 100644
index 000000000..28478457b
--- /dev/null
+++ b/src/test/ui/issues/issue-18107.stderr
@@ -0,0 +1,22 @@
+error[E0746]: return type cannot have an unboxed trait object
+  --> $DIR/issue-18107.rs:4:5
+   |
+LL |     dyn AbstractRenderer
+   |     ^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
+   |
+help: use some type `T` that is `T: Sized` as the return type if all return paths have the same type
+   |
+LL |     T
+   |
+help: use `impl AbstractRenderer` as the return type if all return paths have the same type but you want to expose only the trait in the signature
+   |
+LL |     impl AbstractRenderer
+   |
+help: use a boxed trait object if all return paths implement trait `AbstractRenderer`
+   |
+LL |     Box<dyn AbstractRenderer>
+   |     ++++                    +
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0746`.