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struct RepeatMut<'a, T>(T, &'a ());
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impl<'a, T: 'a> Iterator for RepeatMut<'a, T> {
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type Item = &'a mut T;
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fn next(&'a mut self) -> Option<Self::Item>
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//~^ ERROR method not compatible with trait
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//~| lifetime mismatch
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{
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Some(&mut self.0)
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}
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}
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fn main() {}
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