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> On the other hand, it might be a first step onto a slippery slope that ends with exceptions.

Rust originally had a try! macro just like go and is slowly sliding down that very slope. Let's just say there is a split in the community about whether an exception like outside syntax is a good idea or not. Some like the idea, some don't like it. It yields in threads like this one: https://github.com/rust-lang/rfcs/pull/2426




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