Auto merge of #141750 - Noratrieb:gold-rush, r=bjorn3

Warn when gold was used as the linker

gold has been deprecated recently and is known to behave incorrectly around Rust programs, including miscompiling `#[used(linker)]`. Tell people to switch to a different linker instead.

closes rust-lang/rust#141748

r? bjorn3

Author: bors