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Just wanna say hats off to those who designed and implemented these unicode diagnostics! Having a configurable lint for this, and defaulting to warning is such a good compromise!
A rust compiler diagnostic that warns that two unicode identifiers could be confused visually. It says:

    warning: identifier pair considered confusable between `𝖙𝖊𝖗𝖒` and `𝓉ℯ𝓇𝓂`

It also explains that the diagnostic was produced because the `confusable_idents` lint was enabled by default.
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