Wrapping a non-throwing AsyncIterator

Using Swift
,
1

I'm trying to get code like this to compile:

public struct AsyncIterator<Iterator: AsyncIteratorProtocol>: AsyncIteratorProtocol {
    private var iterator: Iterator

    init(wrapping iterator: Iterator) {
        self.iterator = iterator
    }

    public mutating func next() async -> Iterator.Element? {
        await iterator.next()
    }
}

But I get:

 error: call can throw, but it is not marked with 'try' and the error is not handled
            await iterator.next()

I've tried adding where Iterator.Failure == Never but I'm not sure what else to try. It feels like this should be possible.