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fn main() {
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let values: Vec<u8> = vec![1,2,3,4,5,6,7,8];
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for &[x,y,z] in values.chunks(3).filter(|&xs| xs.len() == 3) {
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//~^ ERROR refutable pattern in `for` loop binding
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//~| patterns `&[]`, `&[_]`, `&[_, _]` and 1 more not covered
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println!("y={}", y);
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}
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}
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