mirror of https://github.com/rust-lang/rust
98 lines
2.6 KiB
Plaintext
98 lines
2.6 KiB
Plaintext
warning: unused return value of `need_to_use_this_value` that must be used
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--> $DIR/fn_must_use.rs:55:5
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LL | need_to_use_this_value();
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| ^^^^^^^^^^^^^^^^^^^^^^^^
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= note: it's important
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note: the lint level is defined here
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--> $DIR/fn_must_use.rs:3:9
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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 _ = need_to_use_this_value();
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| +++++++
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warning: unused return value of `MyStruct::need_to_use_this_method_value` that must be used
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--> $DIR/fn_must_use.rs:60:5
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LL | m.need_to_use_this_method_value();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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help: use `let _ = ...` to ignore the resulting value
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LL | let _ = m.need_to_use_this_method_value();
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| +++++++
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warning: unused return value of `EvenNature::is_even` that must be used
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--> $DIR/fn_must_use.rs:61:5
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LL | m.is_even(); // trait method!
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| ^^^^^^^^^^^
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= note: no side effects
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help: use `let _ = ...` to ignore the resulting value
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LL | let _ = m.is_even(); // trait method!
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| +++++++
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warning: unused return value of `MyStruct::need_to_use_this_associated_function_value` that must be used
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--> $DIR/fn_must_use.rs:64:5
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LL | MyStruct::need_to_use_this_associated_function_value();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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help: use `let _ = ...` to ignore the resulting value
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LL | let _ = MyStruct::need_to_use_this_associated_function_value();
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| +++++++
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warning: unused return value of `std::cmp::PartialEq::eq` that must be used
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--> $DIR/fn_must_use.rs:70:5
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LL | 2.eq(&3);
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| ^^^^^^^^
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help: use `let _ = ...` to ignore the resulting value
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LL | let _ = 2.eq(&3);
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| +++++++
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warning: unused return value of `std::cmp::PartialEq::eq` that must be used
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--> $DIR/fn_must_use.rs:71:5
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LL | m.eq(&n);
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| ^^^^^^^^
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help: use `let _ = ...` to ignore the resulting value
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LL | let _ = m.eq(&n);
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| +++++++
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warning: unused comparison that must be used
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--> $DIR/fn_must_use.rs:74:5
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LL | 2 == 3;
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| ^^^^^^ the comparison produces a value
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help: use `let _ = ...` to ignore the resulting value
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LL | let _ = 2 == 3;
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| +++++++
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warning: unused comparison that must be used
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--> $DIR/fn_must_use.rs:75:5
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LL | m == n;
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| ^^^^^^ the comparison produces a value
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help: use `let _ = ...` to ignore the resulting value
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LL | let _ = m == n;
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| +++++++
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warning: 8 warnings emitted
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