Auto merge of rust-lang#112049 - Kobzol:pgo-omit-benchmarks, r=<try>

[do not merge] CI experiments

Various CI experiments for try/dist builds.

r? `@ghost`

try-job: x86_64-gnu

compiler/rustc_target/src/spec/targets/x86_64_unknown_linux_gnu.rs

@@ -21,6 +21,9 @@ pub(crate) fn target() -> Target {
     // When we're asked to use the `rust-lld` linker by default, set the appropriate lld-using
     // linker flavor, and self-contained linker component.
     if option_env!("CFG_USE_SELF_CONTAINED_LINKER").is_some() {
+        if true {
+            panic!("foo");
+        }
         base.linker_flavor = LinkerFlavor::Gnu(Cc::Yes, Lld::Yes);
         base.link_self_contained = crate::spec::LinkSelfContainedDefault::with_linker();
     }