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warning: value assigned to `a` is never read
--> $DIR/liveness_unintentional_copy.rs:20:9
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LL | a = s;
| ^
|
note: the lint level is defined here
--> $DIR/liveness_unintentional_copy.rs:4:9
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LL | #![warn(unused)]
| ^^^^^^
= note: `#[warn(unused_assignments)]` implied by `#[warn(unused)]`
= help: maybe it is overwritten before being read?
warning: unused variable: `a`
--> $DIR/liveness_unintentional_copy.rs:20:9
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LL | a = s;
| ^
|
= note: `#[warn(unused_variables)]` implied by `#[warn(unused)]`
= help: did you mean to capture by reference instead?
warning: unused variable: `a`
--> $DIR/liveness_unintentional_copy.rs:36:9
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LL | a += x;
| ^
|
= help: did you mean to capture by reference instead?
warning: 3 warnings emitted
|