3 files changed, 28 insertions, 13 deletions
diff --git a/tests/ui/parser/unnecessary-let.fixed b/tests/ui/parser/unnecessary-let.fixed
new file mode 100644
index 00000000000..bdee07e76aa
--- /dev/null
+++ b/tests/ui/parser/unnecessary-let.fixed
@@ -0,0 +1,13 @@
+//@ run-rustfix
+
+fn main() {
+    for _x in [1, 2, 3] {}
+    //~^ ERROR expected pattern, found `let`
+    //~| ERROR missing `in` in `for` loop
+
+    match 1 {
+        1 => {}
+        //~^ ERROR expected pattern, found `let`
+        _ => {}
+    }
+}
diff --git a/tests/ui/parser/unnecessary-let.rs b/tests/ui/parser/unnecessary-let.rs
index 6279109621d..a889d9f7789 100644
--- a/tests/ui/parser/unnecessary-let.rs
+++ b/tests/ui/parser/unnecessary-let.rs
@@ -1,5 +1,7 @@
+//@ run-rustfix
+
 fn main() {
-    for let x of [1, 2, 3] {}
+    for let _x of [1, 2, 3] {}
     //~^ ERROR expected pattern, found `let`
     //~| ERROR missing `in` in `for` loop
 
diff --git a/tests/ui/parser/unnecessary-let.stderr b/tests/ui/parser/unnecessary-let.stderr
index 05ac1faafd4..0b28123747a 100644
--- a/tests/ui/parser/unnecessary-let.stderr
+++ b/tests/ui/parser/unnecessary-let.stderr
@@ -1,31 +1,31 @@
 error: expected pattern, found `let`
-  --> $DIR/unnecessary-let.rs:2:9
+  --> $DIR/unnecessary-let.rs:4:9
    |
-LL |     for let x of [1, 2, 3] {}
-   |         ^^^^
+LL |     for let _x of [1, 2, 3] {}
+   |         ^^^
    |
 help: remove the unnecessary `let` keyword
    |
-LL -     for let x of [1, 2, 3] {}
-LL +     for x of [1, 2, 3] {}
+LL -     for let _x of [1, 2, 3] {}
+LL +     for _x of [1, 2, 3] {}
    |
 
 error: missing `in` in `for` loop
-  --> $DIR/unnecessary-let.rs:2:15
+  --> $DIR/unnecessary-let.rs:4:16
    |
-LL |     for let x of [1, 2, 3] {}
-   |               ^^
+LL |     for let _x of [1, 2, 3] {}
+   |                ^^
    |
 help: try using `in` here instead
    |
-LL |     for let x in [1, 2, 3] {}
-   |               ~~
+LL |     for let _x in [1, 2, 3] {}
+   |                ~~
 
 error: expected pattern, found `let`
-  --> $DIR/unnecessary-let.rs:7:9
+  --> $DIR/unnecessary-let.rs:9:9
    |
 LL |         let 1 => {}
-   |         ^^^^
+   |         ^^^
    |
 help: remove the unnecessary `let` keyword
    |