mirror of https://github.com/rust-lang/rust
52 lines
1.2 KiB
Plaintext
52 lines
1.2 KiB
Plaintext
warning: unused return value of `foo` that must be used
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--> $DIR/must-use-block-expr.rs:13:9
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LL | foo();
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| ^^^^^
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note: the lint level is defined here
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--> $DIR/must-use-block-expr.rs:4:9
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LL | #![warn(unused_must_use)]
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| ^^^^^^^^^^^^^^^
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help: use `let _ = ...` to ignore the resulting value
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LL | let _ = foo();
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| +++++++
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warning: unused return value of `foo` that must be used
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--> $DIR/must-use-block-expr.rs:20:9
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LL | foo()
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| ^^^^^
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help: use `let _ = ...` to ignore the resulting value
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LL | let _ = foo();
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| +++++++ +
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warning: unused arithmetic operation that must be used
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--> $DIR/must-use-block-expr.rs:29:9
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LL | 1 + 2;
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| ^^^^^ the arithmetic operation produces a value
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help: use `let _ = ...` to ignore the resulting value
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LL | let _ = 1 + 2;
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| +++++++
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warning: unused arithmetic operation that must be used
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--> $DIR/must-use-block-expr.rs:33:9
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LL | 1 + 2
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| ^^^^^ the arithmetic operation produces a value
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help: use `let _ = ...` to ignore the resulting value
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LL | let _ = 1 + 2;
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| +++++++ +
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warning: 4 warnings emitted
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