Tracking issue for borrows outliving owners with destructors

[pnkfelix]

This is a tracking issue for a planned fix for issue #31567

Any fix for #31567 is going to be a breaking change; thus, in accordance with existing policy (and draft RFC rust-lang/rfcs#1589 ) I am planning to have the change emit warnings at first, and then after a warning cycle, we can upgrade it to an error.

So, I'm grabbing this issue now while I am working on the fix, so that my warning/error messages can reference a stable URL.

[brson]

@pnkfelix Any updates?

[pnkfelix]

I think this is fixed by NLL

[pnkfelix]

But also note PR #52782 which hasn’t landed bur does include tests that illustrate the breaking change I discussed here