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diff --git a/src/test/ui/structs-enums/struct-enum-ignoring-field-with-underscore.stderr b/src/test/ui/structs-enums/struct-enum-ignoring-field-with-underscore.stderr
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+++ b/src/test/ui/structs-enums/struct-enum-ignoring-field-with-underscore.stderr
@@ -0,0 +1,24 @@
+error: expected identifier, found reserved identifier `_`
+ --> $DIR/struct-enum-ignoring-field-with-underscore.rs:9:27
+ |
+LL | if let Some(Foo::Bar {_}) = foo {}
+ | ^ expected identifier, found reserved identifier
+
+error[E0027]: pattern does not mention field `bar`
+ --> $DIR/struct-enum-ignoring-field-with-underscore.rs:9:17
+ |
+LL | if let Some(Foo::Bar {_}) = foo {}
+ | ^^^^^^^^^^^^ missing field `bar`
+ |
+help: include the missing field in the pattern
+ |
+LL | if let Some(Foo::Bar {_, bar }) = foo {}
+ | ~~~~~~~
+help: if you don't care about this missing field, you can explicitly ignore it
+ |
+LL | if let Some(Foo::Bar {_, .. }) = foo {}
+ | ~~~~~~
+
+error: aborting due to 2 previous errors
+
+For more information about this error, try `rustc --explain E0027`.