1 warning: value captured by `a` is never read
2 --> $DIR/liveness.rs:24:9
7 = help: did you mean to capture by reference instead?
8 note: the lint level is defined here
9 --> $DIR/liveness.rs:5:9
13 = note: `#[warn(unused_assignments)]` implied by `#[warn(unused)]`
15 warning: unused variable: `a`
16 --> $DIR/liveness.rs:33:9
21 = help: did you mean to capture by reference instead?
22 = note: `#[warn(unused_variables)]` implied by `#[warn(unused)]`
24 warning: value assigned to `a` is never read
25 --> $DIR/liveness.rs:53:9
30 = help: maybe it is overwritten before being read?
32 warning: value assigned to `a` is never read
33 --> $DIR/liveness.rs:77:13
38 = help: maybe it is overwritten before being read?
40 warning: value assigned to `b` is never read
41 --> $DIR/liveness.rs:85:13
46 = help: maybe it is overwritten before being read?
48 warning: value assigned to `b` is never read
49 --> $DIR/liveness.rs:87:13
54 = help: maybe it is overwritten before being read?
56 warning: unused variable: `b`
57 --> $DIR/liveness.rs:85:13
62 = help: did you mean to capture by reference instead?
64 warning: 7 warnings emitted