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diff --git a/src/test/ui/closures/2229_closure_analysis/diagnostics/cant-mutate-imm-borrow.stderr b/src/test/ui/closures/2229_closure_analysis/diagnostics/cant-mutate-imm-borrow.stderr
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+error[E0596]: cannot borrow `*z.0.0` as mutable, as it is behind a `&` reference
+ --> $DIR/cant-mutate-imm-borrow.rs:13:17
+ |
+LL | let mut c = || {
+ | ^^ cannot borrow as mutable
+LL |
+LL | z.0.0.0 = format!("X1");
+ | ------- mutable borrow occurs due to use of `*z.0.0` in closure
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0596`.