4 files changed, 45 insertions, 5 deletions
diff --git a/src/test/rustdoc-ui/display-output.rs b/src/test/rustdoc-ui/display-output.rs
new file mode 100644
index 00000000000..5e390029dca
--- /dev/null
+++ b/src/test/rustdoc-ui/display-output.rs
@@ -0,0 +1,9 @@
+// check-pass
+// compile-flags:-Zunstable-options --display-doctest-warnings --test
+// normalize-stdout-test: "src/test/rustdoc-ui" -> "$$DIR"
+// normalize-stdout-test "finished in \d+\.\d+s" -> "finished in $$TIME"
+
+/// ```
+/// let x = 12;
+/// ```
+pub fn foo() {}
diff --git a/src/test/rustdoc-ui/display-output.stdout b/src/test/rustdoc-ui/display-output.stdout
new file mode 100644
index 00000000000..00467b9359e
--- /dev/null
+++ b/src/test/rustdoc-ui/display-output.stdout
@@ -0,0 +1,24 @@
+
+running 1 test
+test $DIR/display-output.rs - foo (line 6) ... ok
+
+successes:
+
+---- $DIR/display-output.rs - foo (line 6) stdout ----
+warning: unused variable: `x`
+  --> $DIR/display-output.rs:7:5
+   |
+LL | let x = 12;
+   |     ^ help: if this is intentional, prefix it with an underscore: `_x`
+   |
+   = note: `#[warn(unused_variables)]` on by default
+
+warning: 1 warning emitted
+
+
+
+successes:
+    $DIR/display-output.rs - foo (line 6)
+
+test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME
+
diff --git a/src/test/rustdoc-ui/invalid-syntax.stderr b/src/test/rustdoc-ui/invalid-syntax.stderr
index 5b1846a49d1..4c6249cc6d9 100644
--- a/src/test/rustdoc-ui/invalid-syntax.stderr
+++ b/src/test/rustdoc-ui/invalid-syntax.stderr
@@ -14,7 +14,7 @@ LL | | /// ```
 help: mark blocks that do not contain Rust code as text
    |
 LL | /// ```text
-   |     ~~~~~~~
+   |        ++++
 
 warning: could not parse code block as Rust code
   --> $DIR/invalid-syntax.rs:9:5
@@ -32,7 +32,7 @@ LL | | /// ```
 help: mark blocks that do not contain Rust code as text
    |
 LL | /// ```text
-   |     ~~~~~~~
+   |        ++++
 
 warning: could not parse code block as Rust code
   --> $DIR/invalid-syntax.rs:21:5
@@ -47,7 +47,7 @@ LL | | /// ```
 help: mark blocks that do not contain Rust code as text
    |
 LL | /// ```text
-   |     ~~~~~~~
+   |        ++++
 
 warning: could not parse code block as Rust code
   --> $DIR/invalid-syntax.rs:35:5
@@ -123,7 +123,7 @@ LL | | /// ```
 help: mark blocks that do not contain Rust code as text
    |
 LL | /// ```text
-   |     ~~~~~~~
+   |        ++++
 
 warning: could not parse code block as Rust code
   --> $DIR/invalid-syntax.rs:92:9
@@ -148,7 +148,7 @@ LL | | /// ```
 help: mark blocks that do not contain Rust code as text
    |
 LL | /// ```text
-   |     ~~~~~~~
+   |        ++++
 
 warning: 12 warnings emitted
 
diff --git a/src/test/rustdoc-ui/lint-missing-doc-code-example.rs b/src/test/rustdoc-ui/lint-missing-doc-code-example.rs
index 41e88477926..7dd2ebfedbb 100644
--- a/src/test/rustdoc-ui/lint-missing-doc-code-example.rs
+++ b/src/test/rustdoc-ui/lint-missing-doc-code-example.rs
@@ -70,6 +70,13 @@ pub union Union {
     b: f32,
 }
 
+// no code example and it's fine!
+impl Clone for Struct {
+    fn clone(&self) -> Self {
+        Self { field: self.field }
+    }
+}
+
 
 #[doc(hidden)]
 pub mod foo {