1 files changed, 24 insertions, 0 deletions
diff --git a/tests/ui/dst/dst-bad-assign-3.stderr b/tests/ui/dst/dst-bad-assign-3.stderr
new file mode 100644
index 00000000000..b326dbbbc14
--- /dev/null
+++ b/tests/ui/dst/dst-bad-assign-3.stderr
@@ -0,0 +1,24 @@
+error[E0308]: mismatched types
+  --> $DIR/dst-bad-assign-3.rs:33:12
+   |
+LL |     f5.2 = Bar1 {f: 36};
+   |     ----   ^^^^^^^^^^^^ expected trait object `dyn ToBar`, found struct `Bar1`
+   |     |
+   |     expected due to the type of this binding
+   |
+   = note: expected trait object `dyn ToBar`
+                    found struct `Bar1`
+
+error[E0277]: the size for values of type `dyn ToBar` cannot be known at compilation time
+  --> $DIR/dst-bad-assign-3.rs:33:5
+   |
+LL |     f5.2 = Bar1 {f: 36};
+   |     ^^^^ doesn't have a size known at compile-time
+   |
+   = help: the trait `Sized` is not implemented for `dyn ToBar`
+   = note: the left-hand-side of an assignment must have a statically known size
+
+error: aborting due to 2 previous errors
+
+Some errors have detailed explanations: E0277, E0308.
+For more information about an error, try `rustc --explain E0277`.