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warning: unused variable: `a`
--> $DIR/liveness-derive.rs:15:13
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LL | let a = 0;
| ^ help: if this is intentional, prefix it with an underscore: `_a`
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note: the lint level is defined here
--> $DIR/liveness-derive.rs:6:9
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LL | #![warn(unused)]
| ^^^^^^
= note: `#[warn(unused_variables)]` implied by `#[warn(unused)]`
warning: unused variable: `b`
--> $DIR/liveness-derive.rs:20:13
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LL | let b = 16;
| ^ help: if this is intentional, prefix it with an underscore: `_b`
warning: 2 warnings emitted
|
