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More about how to get involved in the #rustlang NLL working group here:
https://internals.rust-lang.org/t/help-us-get-non-lexical-lifetimes-nll-over-the-finish-line/7807/2?u=nikomatsakis …
(see the head of the thread for some meta notes)
This thread includes a series of optimization bugs with at least some level of mentoring instructions, by the way. =)
