Auto merge of rust-lang#134131 - jieyouxu:exp-bootstrap-test, r=<try>

[DO NOT MERGE][BETA] What does compiletest see in opt-dist?

Does try jobs even work against beta...?

r? `@ghost`

try-job: dist-x86_64-linux

Author: bors

src/ci/github-actions/jobs.yml

@@ -79,7 +79,7 @@ envs:
     # - not running `opt-dist`'s post-optimization smoke tests on the resulting toolchain
     #
     # If you *want* these to happen however, temporarily uncomment it before triggering a try build.
-    DIST_TRY_BUILD: 1
+    #DIST_TRY_BUILD: 1
 
   auto:
     <<: *production

src/tools/compiletest/src/main.rs

@@ -18,6 +18,16 @@ fn main() {
 
     let config = Arc::new(parse_config(env::args().collect()));
 
+    eprintln!("INFO: compiletest was told channel=`{}`", config.channel);
+    eprintln!("INFO: rustc -vV reports:");
+    eprintln!(
+        "{}",
+        String::from_utf8(
+            std::process::Command::new(&config.rustc_path).arg("-vV").output().unwrap().stdout
+        )
+        .unwrap()
+    );
+
     if !config.has_html_tidy && config.mode == Mode::Rustdoc {
         eprintln!("warning: `tidy` (html-tidy.org) is not installed; diffs will not be generated");
     }