Man pages matching name rustc in section 1:

rustc.1.en	debian 10 / rustc
rustc.1.en	debian 10 / rustc-mozilla
rustc.1.en	debian 11 / rustc
rustc.1.en	debian 11 / rustc-mozilla
rustc.1.en	debian 11 / rustc-web
rustc.1.en	debian 12 / rustc
rustc.1.en	debian 12 / rustc-web
rustc.1.en	debian 13 / rustc