1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
warning: value assigned to `a` is never read
--> $DIR/liveness_unintentional_copy.rs:20:9
|
LL | a = s;
| ^
|
= help: maybe it is overwritten before being read?
note: the lint level is defined here
--> $DIR/liveness_unintentional_copy.rs:4:9
|
LL | #![warn(unused)]
| ^^^^^^
= note: `#[warn(unused_assignments)]` implied by `#[warn(unused)]`
warning: unused variable: `a`
--> $DIR/liveness_unintentional_copy.rs:20:9
|
LL | a = s;
| ^
|
= help: did you mean to capture by reference instead?
= note: `#[warn(unused_variables)]` implied by `#[warn(unused)]`
warning: unused variable: `a`
--> $DIR/liveness_unintentional_copy.rs:36:9
|
LL | a += x;
| ^
|
= help: did you mean to capture by reference instead?
warning: 3 warnings emitted
|
