error: `..` can only be used once per tuple struct or variant pattern
  --> $DIR/tuple_struct_destructure_fail.rs:23:27
   |
LL |     TupleStruct(a, .., b, ..) = TupleStruct(0, 1);
   |                    --     ^^ can only be used once per tuple struct or variant pattern
   |                    |
   |                    previously used here

error: `..` can only be used once per tuple struct or variant pattern
  --> $DIR/tuple_struct_destructure_fail.rs:25:35
   |
LL |     Enum::SingleVariant(a, .., b, ..) = Enum::SingleVariant(0, 1);
   |                            --     ^^ can only be used once per tuple struct or variant pattern
   |                            |
   |                            previously used here

error[E0023]: this pattern has 3 fields, but the corresponding tuple struct has 2 fields
  --> $DIR/tuple_struct_destructure_fail.rs:28:17
   |
LL | struct TupleStruct<S, T>(S, T);
   |                          -  - tuple struct has 2 fields
...
LL |     TupleStruct(a, a, b) = TupleStruct(1, 2);
   |                 ^  ^  ^ expected 2 fields, found 3

error[E0023]: this pattern has 1 field, but the corresponding tuple struct has 2 fields
  --> $DIR/tuple_struct_destructure_fail.rs:30:17
   |
LL | struct TupleStruct<S, T>(S, T);
   |                          -  - tuple struct has 2 fields
...
LL |     TupleStruct(_) = TupleStruct(1, 2);
   |                 ^ expected 2 fields, found 1
   |
help: use `_` to explicitly ignore each field
   |
LL |     TupleStruct(_, _) = TupleStruct(1, 2);
   |                  +++
help: use `..` to ignore all fields
   |
LL -     TupleStruct(_) = TupleStruct(1, 2);
LL +     TupleStruct(..) = TupleStruct(1, 2);
   |

error[E0023]: this pattern has 3 fields, but the corresponding tuple variant has 2 fields
  --> $DIR/tuple_struct_destructure_fail.rs:32:25
   |
LL |     SingleVariant(S, T)
   |                   -  - tuple variant has 2 fields
...
LL |     Enum::SingleVariant(a, a, b) = Enum::SingleVariant(1, 2);
   |                         ^  ^  ^ expected 2 fields, found 3

error[E0023]: this pattern has 1 field, but the corresponding tuple variant has 2 fields
  --> $DIR/tuple_struct_destructure_fail.rs:34:25
   |
LL |     SingleVariant(S, T)
   |                   -  - tuple variant has 2 fields
...
LL |     Enum::SingleVariant(_) = Enum::SingleVariant(1, 2);
   |                         ^ expected 2 fields, found 1
   |
help: use `_` to explicitly ignore each field
   |
LL |     Enum::SingleVariant(_, _) = Enum::SingleVariant(1, 2);
   |                          +++
help: use `..` to ignore all fields
   |
LL -     Enum::SingleVariant(_) = Enum::SingleVariant(1, 2);
LL +     Enum::SingleVariant(..) = Enum::SingleVariant(1, 2);
   |

error[E0070]: invalid left-hand side of assignment
  --> $DIR/tuple_struct_destructure_fail.rs:38:12
   |
LL |     test() = TupleStruct(0, 0);
   |     ------ ^
   |     |
   |     cannot assign to this expression

error[E0070]: invalid left-hand side of assignment
  --> $DIR/tuple_struct_destructure_fail.rs:40:14
   |
LL |     (test)() = TupleStruct(0, 0);
   |     -------- ^
   |     |
   |     cannot assign to this expression

error[E0070]: invalid left-hand side of assignment
  --> $DIR/tuple_struct_destructure_fail.rs:42:38
   |
LL |     <Alias::<isize> as Test>::test() = TupleStruct(0, 0);
   |     -------------------------------- ^
   |     |
   |     cannot assign to this expression

error: aborting due to 9 previous errors

Some errors have detailed explanations: E0023, E0070.
For more information about an error, try `rustc --explain E0023`.