rustc has been successfully subjected to diverse-double-compilation (https://dwheeler.com/trusting-trust/ https://dwheeler.com/trusting-trust/) via mrustc at va

rustc has been successfully subjected to diverse-double-compilation (https://dwheeler.com/trusting-trust/ https://dwheeler.com/trusting-trust/) via mrustc at various points in its history, which plausibly rules out trusting-trust attacks for those versions.