Box::into_unique: do the reborrow-to-raw *after* destroying the Box #61086
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Box::into_unique: do the reborrow-to-raw *after* destroying the Box Currently we first "reborrow" the box to a raw pointer, and then `forget` it. When tracking raw pointers more strictly (something I am experimenting with locally in Miri), the "use" induced by passing the box to `forget` invalidates the previously created raw pointer. So adjust my hack from rust-lang#58429 to reorder the two operations.
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Rollup of 6 pull requests Successful merges: - #59545 (Use arenas to avoid Lrc in queries #2) - #61054 (Suggest dereferencing on assignment to mutable borrow) - #61056 (tweak discriminant on non-nullary enum diagnostic) - #61082 (fix dangling reference in Vec::append) - #61086 (Box::into_unique: do the reborrow-to-raw *after* destroying the Box) - #61098 (Fix overflowing literal lint in loops) Failed merges: r? @ghost
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Currently we first "reborrow" the box to a raw pointer, and then
forgetit. When tracking raw pointers more strictly (something I am experimenting with locally in Miri), the "use" induced by passing the box toforgetinvalidates the previously created raw pointer.So adjust my hack from #58429 to reorder the two operations.