error: variable does not need to be mutable
  --> $DIR/lint-unused-mut-variables.rs:59:14
   |
LL |     let x = |mut y: isize| 10; //[lexical]~ ERROR: variable does not need to be mutable
   |              ----^
   |              |
   |              help: remove this `mut`
   |
note: lint level defined here
  --> $DIR/lint-unused-mut-variables.rs:19:9
   |
LL | #![deny(unused_mut)]
   |         ^^^^^^^^^^

error: variable does not need to be mutable
  --> $DIR/lint-unused-mut-variables.rs:24:9
   |
LL |     let mut a = 3; //[lexical]~ ERROR: variable does not need to be mutable
   |         ----^
   |         |
   |         help: remove this `mut`

error: variable does not need to be mutable
  --> $DIR/lint-unused-mut-variables.rs:26:9
   |
LL |     let mut a = 2; //[lexical]~ ERROR: variable does not need to be mutable
   |         ----^
   |         |
   |         help: remove this `mut`

error: variable does not need to be mutable
  --> $DIR/lint-unused-mut-variables.rs:28:9
   |
LL |     let mut b = 3; //[lexical]~ ERROR: variable does not need to be mutable
   |         ----^
   |         |
   |         help: remove this `mut`

error: variable does not need to be mutable
  --> $DIR/lint-unused-mut-variables.rs:30:9
   |
LL |     let mut a = vec![3]; //[lexical]~ ERROR: variable does not need to be mutable
   |         ----^
   |         |
   |         help: remove this `mut`

error: variable does not need to be mutable
  --> $DIR/lint-unused-mut-variables.rs:32:10
   |
LL |     let (mut a, b) = (1, 2); //[lexical]~ ERROR: variable does not need to be mutable
   |          ----^
   |          |
   |          help: remove this `mut`

error: variable does not need to be mutable
  --> $DIR/lint-unused-mut-variables.rs:34:9
   |
LL |     let mut a; //[lexical]~ ERROR: variable does not need to be mutable
   |         ----^
   |         |
   |         help: remove this `mut`

error: variable does not need to be mutable
  --> $DIR/lint-unused-mut-variables.rs:38:9
   |
LL |     let mut b; //[lexical]~ ERROR: variable does not need to be mutable
   |         ----^
   |         |
   |         help: remove this `mut`

error: variable does not need to be mutable
  --> $DIR/lint-unused-mut-variables.rs:47:9
   |
LL |         mut x => {} //[lexical]~ ERROR: variable does not need to be mutable
   |         ----^
   |         |
   |         help: remove this `mut`

error: variable does not need to be mutable
  --> $DIR/lint-unused-mut-variables.rs:51:8
   |
LL |       (mut x, 1) | //[lexical]~ ERROR: variable does not need to be mutable
   |        ----^
   |        |
   |        help: remove this `mut`

error: variable does not need to be mutable
  --> $DIR/lint-unused-mut-variables.rs:64:9
   |
LL |     let mut a = &mut 5; //[lexical]~ ERROR: variable does not need to be mutable
   |         ----^
   |         |
   |         help: remove this `mut`

error: variable does not need to be mutable
  --> $DIR/lint-unused-mut-variables.rs:69:9
   |
LL |     let mut b = (&mut a,); //[lexical]~ ERROR: variable does not need to be mutable
   |         ----^
   |         |
   |         help: remove this `mut`

error: variable does not need to be mutable
  --> $DIR/lint-unused-mut-variables.rs:72:9
   |
LL |     let mut x = &mut 1; //[lexical]~ ERROR: variable does not need to be mutable
   |         ----^
   |         |
   |         help: remove this `mut`

error: variable does not need to be mutable
  --> $DIR/lint-unused-mut-variables.rs:84:9
   |
LL |     let mut v : &mut Vec<()> = &mut vec![]; //[lexical]~ ERROR: variable does not need to be mutable
   |         ----^
   |         |
   |         help: remove this `mut`

error: variable does not need to be mutable
  --> $DIR/lint-unused-mut-variables.rs:61:13
   |
LL |     fn what(mut foo: isize) {} //[lexical]~ ERROR: variable does not need to be mutable
   |             ----^^^
   |             |
   |             help: remove this `mut`

error: variable does not need to be mutable
  --> $DIR/lint-unused-mut-variables.rs:79:20
   |
LL |     fn mut_ref_arg(mut arg : &mut [u8]) -> &mut [u8] {
   |                    ----^^^
   |                    |
   |                    help: remove this `mut`

error: variable does not need to be mutable
  --> $DIR/lint-unused-mut-variables.rs:143:9
   |
LL |     let mut b = vec![2]; //[lexical]~ ERROR: variable does not need to be mutable
   |         ----^
   |         |
   |         help: remove this `mut`
   |
note: lint level defined here
  --> $DIR/lint-unused-mut-variables.rs:139:8
   |
LL | #[deny(unused_mut)]
   |        ^^^^^^^^^^

error: aborting due to 17 previous errors