`rustc-perf` fails to build after #107956

[KittyBorgX]

rustc-perf fails to build after #107956

It appears broken in https://perf.rust-lang.org/status.html

Error:

thread 'main' panicked at 'self.symlink_file(&rustfmt_path, &legacy_rustfmt) failed with File exists (os error 17)', download.rs:346:17
       note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

Possible Workaround - Comment out

       #[cfg(not(windows))]
        {
            let legacy_rustfmt = self.initial_rustc.with_file_name(exe("rustfmt", host));
            if !legacy_rustfmt.exists() {
                t!(self.symlink_file(&rustfmt_path, &legacy_rustfmt));
            }
        }

in src/bootstrap/download.rs:342 to avoid symlinking rustfmt since are explicitly copying the rustfmt binary in #107956

zulip thread : https://rust-lang.zulipchat.com/#narrow/stream/247081-t compiler.2Fperformance/topic/Bootstrap.20benchmarking.20broken

cc : @jyn514 @Kobzol

[KittyBorgX]

@rustbot claim
I want to fix this myself :)

[rustbot]

Error: Parsing assign command in comment failed: ...' claim' | error: expected end of command at >| ' -- I want'...

Please file an issue on GitHub at triagebot if there's a problem with this bot, or reach out on #t-infra on Zulip.

[KittyBorgX]

As per zulip discussions, the pr will be reverted (for now)
I will release my assignment since there's nothing more that I can do.

[lqd]

This was fixed by #108302