warning: value assigned to `last` is never read
  --> $DIR/liveness-upvars.rs:10:9
   |
LL |         last = Some(s);
   |         ^^^^
   |
   = help: maybe it is overwritten before being read?
note: the lint level is defined here
  --> $DIR/liveness-upvars.rs:4:9
   |
LL | #![warn(unused)]
   |         ^^^^^^
   = note: `#[warn(unused_assignments)]` implied by `#[warn(unused)]`

warning: unused variable: `last`
  --> $DIR/liveness-upvars.rs:10:9
   |
LL |         last = Some(s);
   |         ^^^^
   |
   = help: did you mean to capture by reference instead?
   = note: `#[warn(unused_variables)]` implied by `#[warn(unused)]`

warning: unused variable: `sum`
  --> $DIR/liveness-upvars.rs:22:9
   |
LL |         sum += x;
   |         ^^^
   |
   = help: did you mean to capture by reference instead?

warning: value captured by `c` is never read
  --> $DIR/liveness-upvars.rs:32:9
   |
LL |         c = 1;
   |         ^
   |
   = help: did you mean to capture by reference instead?

warning: value captured by `c` is never read
  --> $DIR/liveness-upvars.rs:36:9
   |
LL |         c = 1;
   |         ^
   |
   = help: did you mean to capture by reference instead?

warning: unused variable: `c`
  --> $DIR/liveness-upvars.rs:42:9
   |
LL |         c += 1;
   |         ^
   |
   = help: did you mean to capture by reference instead?

warning: value assigned to `c` is never read
  --> $DIR/liveness-upvars.rs:45:9
   |
LL |         c += 1;
   |         ^
   |
   = help: maybe it is overwritten before being read?

warning: unused variable: `c`
  --> $DIR/liveness-upvars.rs:45:9
   |
LL |         c += 1;
   |         ^
   |
   = help: did you mean to capture by reference instead?

warning: value assigned to `c` is never read
  --> $DIR/liveness-upvars.rs:58:9
   |
LL |         c += 1;
   |         ^
   |
   = help: maybe it is overwritten before being read?

warning: value assigned to `c` is never read
  --> $DIR/liveness-upvars.rs:64:9
   |
LL |         c += 1;
   |         ^
   |
   = help: maybe it is overwritten before being read?

warning: value assigned to `d` is never read
  --> $DIR/liveness-upvars.rs:73:13
   |
LL |             d = Some("d1");
   |             ^
   |
   = help: maybe it is overwritten before being read?

warning: value assigned to `e` is never read
  --> $DIR/liveness-upvars.rs:77:13
   |
LL |             e = Some("e1");
   |             ^
   |
   = help: maybe it is overwritten before being read?

warning: value assigned to `e` is never read
  --> $DIR/liveness-upvars.rs:79:13
   |
LL |             e = Some("e2");
   |             ^
   |
   = help: maybe it is overwritten before being read?

warning: unused variable: `e`
  --> $DIR/liveness-upvars.rs:77:13
   |
LL |             e = Some("e1");
   |             ^
   |
   = help: did you mean to capture by reference instead?

warning: value assigned to `v` is never read
  --> $DIR/liveness-upvars.rs:87:13
   |
LL |             v = T::default();
   |             ^
   |
   = help: maybe it is overwritten before being read?

warning: value assigned to `z` is never read
  --> $DIR/liveness-upvars.rs:99:17
   |
LL |                 z = T::default();
   |                 ^
   |
   = help: maybe it is overwritten before being read?

warning: unused variable: `z`
  --> $DIR/liveness-upvars.rs:99:17
   |
LL |                 z = T::default();
   |                 ^
   |
   = help: did you mean to capture by reference instead?

warning: value assigned to `state` is never read
  --> $DIR/liveness-upvars.rs:125:9
   |
LL |         state = 4;
   |         ^^^^^
   |
   = help: maybe it is overwritten before being read?

warning: value assigned to `state` is never read
  --> $DIR/liveness-upvars.rs:128:9
   |
LL |         state = 5;
   |         ^^^^^
   |
   = help: maybe it is overwritten before being read?

warning: unused variable: `state`
  --> $DIR/liveness-upvars.rs:125:9
   |
LL |         state = 4;
   |         ^^^^^
   |
   = help: did you mean to capture by reference instead?

warning: value assigned to `s` is never read
  --> $DIR/liveness-upvars.rs:137:9
   |
LL |         s = 1;
   |         ^
   |
   = help: maybe it is overwritten before being read?

warning: value assigned to `s` is never read
  --> $DIR/liveness-upvars.rs:139:9
   |
LL |         s = yield ();
   |         ^
   |
   = help: maybe it is overwritten before being read?

warning: 22 warnings emitted