warning: value assigned to `last` is never read
  --> $DIR/liveness-upvars.rs:9:9
   |
LL |         last = Some(s);
   |         ^^^^
   |
note: the lint level is defined here
  --> $DIR/liveness-upvars.rs:3:9
   |
LL | #![warn(unused)]
   |         ^^^^^^
   = note: `#[warn(unused_assignments)]` implied by `#[warn(unused)]`
   = help: maybe it is overwritten before being read?

warning: unused variable: `last`
  --> $DIR/liveness-upvars.rs:9:9
   |
LL |         last = Some(s);
   |         ^^^^
   |
note: the lint level is defined here
  --> $DIR/liveness-upvars.rs:3:9
   |
LL | #![warn(unused)]
   |         ^^^^^^
   = note: `#[warn(unused_variables)]` implied by `#[warn(unused)]`
   = help: did you mean to capture by reference instead?

warning: unused variable: `sum`
  --> $DIR/liveness-upvars.rs:21:9
   |
LL |         sum += x;
   |         ^^^
   |
   = help: did you mean to capture by reference instead?

warning: value captured by `c` is never read
  --> $DIR/liveness-upvars.rs:31:9
   |
LL |         c = 1;
   |         ^
   |
   = help: did you mean to capture by reference instead?

warning: value captured by `c` is never read
  --> $DIR/liveness-upvars.rs:35:9
   |
LL |         c = 1;
   |         ^
   |
   = help: did you mean to capture by reference instead?

warning: unused variable: `c`
  --> $DIR/liveness-upvars.rs:41:9
   |
LL |         c += 1;
   |         ^
   |
   = help: did you mean to capture by reference instead?

warning: value assigned to `c` is never read
  --> $DIR/liveness-upvars.rs:44:9
   |
LL |         c += 1;
   |         ^
   |
   = help: maybe it is overwritten before being read?

warning: unused variable: `c`
  --> $DIR/liveness-upvars.rs:44:9
   |
LL |         c += 1;
   |         ^
   |
   = help: did you mean to capture by reference instead?

warning: value assigned to `c` is never read
  --> $DIR/liveness-upvars.rs:57:9
   |
LL |         c += 1;
   |         ^
   |
   = help: maybe it is overwritten before being read?

warning: value assigned to `c` is never read
  --> $DIR/liveness-upvars.rs:63:9
   |
LL |         c += 1;
   |         ^
   |
   = help: maybe it is overwritten before being read?

warning: value assigned to `d` is never read
  --> $DIR/liveness-upvars.rs:72:13
   |
LL |             d = Some("d1");
   |             ^
   |
   = help: maybe it is overwritten before being read?

warning: value assigned to `e` is never read
  --> $DIR/liveness-upvars.rs:76:13
   |
LL |             e = Some("e1");
   |             ^
   |
   = help: maybe it is overwritten before being read?

warning: value assigned to `e` is never read
  --> $DIR/liveness-upvars.rs:78:13
   |
LL |             e = Some("e2");
   |             ^
   |
   = help: maybe it is overwritten before being read?

warning: unused variable: `e`
  --> $DIR/liveness-upvars.rs:76:13
   |
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:86:13
   |
LL |             v = T::default();
   |             ^
   |
   = help: maybe it is overwritten before being read?

warning: value assigned to `z` is never read
  --> $DIR/liveness-upvars.rs:98:17
   |
LL |                 z = T::default();
   |                 ^
   |
   = help: maybe it is overwritten before being read?

warning: unused variable: `z`
  --> $DIR/liveness-upvars.rs:98:17
   |
LL |                 z = T::default();
   |                 ^
   |
   = help: did you mean to capture by reference instead?

warning: 17 warnings emitted