21 lines
779 B
Plaintext
21 lines
779 B
Plaintext
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error[E0308]: mismatched types
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--> $DIR/chain-method-call-mutation-in-place.rs:3:5
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LL | fn foo(mut s: String) -> String {
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| ------ expected `std::string::String` because of return type
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LL | s.push_str("asdf")
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| ^^^^^^^^^^^^^^^^^^ expected struct `std::string::String`, found `()`
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note: method `push_str` modifies its receiver in-place
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--> $DIR/chain-method-call-mutation-in-place.rs:3:7
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LL | s.push_str("asdf")
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| - ^^^^^^^^ this call modifies `s` in-place
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| you probably want to use this value after calling the method...
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= note: ...instead of the `()` output of method `push_str`
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error: aborting due to previous error
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For more information about this error, try `rustc --explain E0308`.
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