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error: `foo @` is not allowed in a tuple
  --> $DIR/issue-74702.rs:2:10
   |
LL |     let (foo @ ..,) = (0, 0);
   |          ^^^^^^^^ this is only allowed in slice patterns
   |
   = help: remove this and bind each tuple field independently
help: if you don't need to use the contents of foo, discard the tuple's remaining fields
   |
LL |     let (..,) = (0, 0);
   |          ~~

error: `..` patterns are not allowed here
  --> $DIR/issue-74702.rs:2:16
   |
LL |     let (foo @ ..,) = (0, 0);
   |                ^^
   |
   = note: only allowed in tuple, tuple struct, and slice patterns

error[E0308]: mismatched types
  --> $DIR/issue-74702.rs:2:9
   |
LL |     let (foo @ ..,) = (0, 0);
   |         ^^^^^^^^^^^   ------ this expression has type `({integer}, {integer})`
   |         |
   |         expected a tuple with 2 elements, found one with 1 element
   |
   = note: expected tuple `({integer}, {integer})`
              found tuple `(_,)`

error: aborting due to 3 previous errors

For more information about this error, try `rustc --explain E0308`.