Co-authored-by: Esteban Kuber <estebank@users.noreply.github.com>

Email from @camelid:

> HI there,
>
> I’m a new contributor and I just looked at Rust Thanks and noticed that my contributions are listed under two different capitalizations of my name: “Camelid" and “camelid". Could you make them both “Camelid"?
> 
> Thanks!
> 
> Camelid

…ure, r=matthewjasper

Add regression test for rust-lang#72554

Fix rust-lang#72554.

rustc_target: Remove `pre_link_args_crt`

To regain some more control over the definition of `+crt-static` (rust-lang#71586).

After rust-lang#71769 this target option wasn't used anywhere except for VxWorks, and I suspect that for VxWorks its use may be redundant as well.

Improve E0433, so that it suggests missing imports

Closes rust-lang#52468

fix `AdtDef` docs

…k-Simulacrum

Add Camelid per request

Email from @camelid:

> HI there,
>
> I’m a new contributor and I just looked at Rust Thanks and noticed that my contributions are listed under two different capitalizations of my name: “Camelid" and “camelid". Could you make them both “Camelid"?
>
> Thanks!
>
> Camelid

…Simulacrum

Bump libc dependency to latest version (0.2.71)

Hello,

Just a quick version bump PR. The rust-psp group had some changes merged to libc recently but they haven't made it into the compiler. We're looking to remove our forked version from our Xargo.toml. Thanks.