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error[E0308]: mismatched types
--> $DIR/issue-50585.rs:2:18
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LL | |y: Vec<[(); for x in 0..2 {}]>| {};
| ^^^^^^^^^^^^^^^^ expected `usize`, found `()`
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= note: `for` loops evaluate to unit type `()`
help: consider returning a value here
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LL | |y: Vec<[(); for x in 0..2 {} /* `usize` value */]>| {};
| +++++++++++++++++++
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0308`.
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