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I was writing some code in 2018 recently and didn't realise how much NLL really makes a difference. I went to push the a change to a CI and realised I would have to heavily refactor in order to get things working on stable.

Your work is very much appreciated, thank you.

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The first place I needed it was the simple case of borrowing inside a `match` case and short-circuiting `return None` in one of the branches.

Thankfully someone in IRC told me back then to just switch on the feature flag. Never looked back.

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