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pub trait Resources<'a> {} pub trait Buffer<'a, R: Resources<'a>> { fn select(&self) -> BufferViewHandle<R>; //~^ ERROR mismatched types //~| lifetime mismatch //~| ERROR mismatched types //~| lifetime mismatch } pub struct BufferViewHandle<'a, R: 'a+Resources<'a>>(&'a R); fn main() {}