error: `mut` must be followed by a named binding
  --> $DIR/mut-patterns.rs:9:9
   |
LL |     let mut _ = 0;
   |         ^^^^ help: remove the `mut` prefix
   |
   = note: `mut` may be followed by `variable` and `variable @ pattern`

error: `mut` must be followed by a named binding
  --> $DIR/mut-patterns.rs:10:9
   |
LL |     let mut (_, _) = (0, 0);
   |         ^^^^ help: remove the `mut` prefix
   |
   = note: `mut` may be followed by `variable` and `variable @ pattern`

error: `mut` must be attached to each individual binding
  --> $DIR/mut-patterns.rs:12:9
   |
LL |     let mut (x @ y) = 0;
   |         ^^^^^^^^^^^ help: add `mut` to each binding: `(mut x @ mut y)`
   |
   = note: `mut` may be followed by `variable` and `variable @ pattern`

error: `mut` on a binding may not be repeated
  --> $DIR/mut-patterns.rs:14:13
   |
LL |     let mut mut x = 0;
   |             ^^^ help: remove the additional `mut`s

error: `mut` must be attached to each individual binding
  --> $DIR/mut-patterns.rs:19:9
   |
LL |     let mut Foo { x: x } = Foo { x: 3 };
   |         ^^^^^^^^^^^^^^^^ help: add `mut` to each binding: `Foo { x: mut x }`
   |
   = note: `mut` may be followed by `variable` and `variable @ pattern`

error: `mut` must be attached to each individual binding
  --> $DIR/mut-patterns.rs:23:9
   |
LL |     let mut Foo { x } = Foo { x: 3 };
   |         ^^^^^^^^^^^^^ help: add `mut` to each binding: `Foo { mut x }`
   |
   = note: `mut` may be followed by `variable` and `variable @ pattern`

error: `mut` on a binding may not be repeated
  --> $DIR/mut-patterns.rs:28:13
   |
LL |     let mut mut yield(become, await) = r#yield(0, 0);
   |             ^^^ help: remove the additional `mut`s

error: expected identifier, found reserved keyword `yield`
  --> $DIR/mut-patterns.rs:28:17
   |
LL |     let mut mut yield(become, await) = r#yield(0, 0);
   |                 ^^^^^ expected identifier, found reserved keyword
   |
help: escape `yield` to use it as an identifier
   |
LL |     let mut mut r#yield(become, await) = r#yield(0, 0);
   |                 ++

error: expected identifier, found reserved keyword `become`
  --> $DIR/mut-patterns.rs:28:23
   |
LL |     let mut mut yield(become, await) = r#yield(0, 0);
   |                       ^^^^^^ expected identifier, found reserved keyword
   |
help: escape `become` to use it as an identifier
   |
LL |     let mut mut yield(r#become, await) = r#yield(0, 0);
   |                       ++

error: expected identifier, found keyword `await`
  --> $DIR/mut-patterns.rs:28:31
   |
LL |     let mut mut yield(become, await) = r#yield(0, 0);
   |                               ^^^^^ expected identifier, found keyword
   |
help: escape `await` to use it as an identifier
   |
LL |     let mut mut yield(become, r#await) = r#yield(0, 0);
   |                               ++

error: `mut` must be followed by a named binding
  --> $DIR/mut-patterns.rs:28:9
   |
LL |     let mut mut yield(become, await) = r#yield(0, 0);
   |         ^^^^^^^^ help: remove the `mut` prefix
   |
   = note: `mut` may be followed by `variable` and `variable @ pattern`

error: `mut` must be attached to each individual binding
  --> $DIR/mut-patterns.rs:37:9
   |
LL |     let mut W(mut a, W(b, W(ref c, W(d, B { box f }))))
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: add `mut` to each binding: `W(mut a, W(mut b, W(ref c, W(mut d, B { box mut f }))))`
   |
   = note: `mut` may be followed by `variable` and `variable @ pattern`

error: expected identifier, found `x`
  --> $DIR/mut-patterns.rs:44:21
   |
LL |             let mut $p = 0;
   |                     ^^ expected identifier
...
LL |     foo!(x);
   |     ------- in this macro invocation
   |
   = note: this error originates in the macro `foo` (in Nightly builds, run with -Z macro-backtrace for more info)

error: aborting due to 13 previous errors