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diff --git a/src/test/ui/nll/dont-print-desugared.stderr b/src/test/ui/nll/dont-print-desugared.stderr
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+error[E0596]: cannot borrow data in a `&` reference as mutable
+ --> $DIR/dont-print-desugared.rs:4:10
+ |
+LL | for &ref mut x in s {}
+ | ^^^^^^^^^ cannot borrow as mutable
+
+error[E0597]: `y` does not live long enough
+ --> $DIR/dont-print-desugared.rs:17:16
+ |
+LL | for ref mut d in v {
+ | - a temporary with access to the borrow is created here ...
+LL | let y = ();
+LL | *d = D(&y);
+ | ^^ borrowed value does not live long enough
+LL | }
+ | -
+ | |
+ | `y` dropped here while still borrowed
+ | ... and the borrow might be used here, when that temporary is dropped and runs the `Drop` code for type `D`
+
+error: aborting due to 2 previous errors
+
+Some errors have detailed explanations: E0596, E0597.
+For more information about an error, try `rustc --explain E0596`.