1 files changed, 27 insertions, 0 deletions
diff --git a/src/test/ui/generator/type-mismatch-signature-deduction.stderr b/src/test/ui/generator/type-mismatch-signature-deduction.stderr
new file mode 100644
index 000000000..7938fc809
--- /dev/null
+++ b/src/test/ui/generator/type-mismatch-signature-deduction.stderr
@@ -0,0 +1,27 @@
+error[E0308]: mismatched types
+  --> $DIR/type-mismatch-signature-deduction.rs:14:9
+   |
+LL |         5
+   |         ^ expected enum `Result`, found integer
+   |
+   = note: expected enum `Result<{integer}, _>`
+              found type `{integer}`
+note: return type inferred to be `Result<{integer}, _>` here
+  --> $DIR/type-mismatch-signature-deduction.rs:9:20
+   |
+LL |             return Ok(6);
+   |                    ^^^^^
+
+error[E0271]: type mismatch resolving `<[generator@$DIR/type-mismatch-signature-deduction.rs:7:5: 7:7] as Generator>::Return == i32`
+  --> $DIR/type-mismatch-signature-deduction.rs:5:13
+   |
+LL | fn foo() -> impl Generator<Return = i32> {
+   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected enum `Result`, found `i32`
+   |
+   = note: expected enum `Result<{integer}, _>`
+              found type `i32`
+
+error: aborting due to 2 previous errors
+
+Some errors have detailed explanations: E0271, E0308.
+For more information about an error, try `rustc --explain E0271`.