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-rw-r--r--src/test/ui/str/str-concat-on-double-ref.stderr18
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diff --git a/src/test/ui/str/str-concat-on-double-ref.stderr b/src/test/ui/str/str-concat-on-double-ref.stderr
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+error[E0369]: cannot add `&str` to `&String`
+ --> $DIR/str-concat-on-double-ref.rs:4:15
+ |
+LL | let c = a + b;
+ | - ^ - &str
+ | | |
+ | | `+` cannot be used to concatenate two `&str` strings
+ | &String
+ |
+ = note: string concatenation requires an owned `String` on the left
+help: create an owned `String` from a string reference
+ |
+LL | let c = a.to_owned() + b;
+ | +++++++++++
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0369`.