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Rollup merge of #161112 - cuviper:O3, r=saethlin

rustc.1: `-O` is `-C opt-level=3`

This was changed back in 1.86, rust-lang/rust#135439.
J
Jonathan Brouwer committed
244594848f81c4c715724ec4d1d5ac3e4d0a7f25
Committed by GitHub <noreply@github.com> on 8/14/2026, 9:55:10 PM