contrib: Print deterministic-coverage runs

Author: MarcoFalke

contrib/devtools/deterministic-fuzz-coverage/src/main.rs

@@ -187,6 +187,7 @@ The coverage was not deterministic between runs.
     //
     // Also, This can catch issues where several fuzz inputs are non-deterministic, but the sum of
     // their overall coverage trace remains the same across runs and thus remains undetected.
+    println!("Check each fuzz input individually ...");
     for entry in entries {
         let entry = entry.path();
         if !entry.is_file() {
@@ -203,6 +204,7 @@ The coverage was not deterministic between runs.
     // Finally, check that running over all fuzz inputs in one process is deterministic as well.
     // This can catch issues where mutable global state is leaked from one fuzz input execution to
     // the next.
+    println!("Check all fuzz inputs in one go ...");
     {
         if !corpus_dir.is_dir() {
             Err(format!("{} should be a folder", corpus_dir.display()))?;

contrib/devtools/deterministic-unittest-coverage/src/main.rs

@@ -72,6 +72,7 @@ fn deterministic_coverage(build_dir: &Path, test_exe: &Path, filter: &str) -> Ap
     let profraw_file = build_dir.join("test_det_cov.profraw");
     let profdata_file = build_dir.join("test_det_cov.profdata");
     let run_single = |run_id: u8| -> Result<PathBuf, AppError> {
+        println!("Run with id {run_id}");
         let cov_txt_path = build_dir.join(format!("test_det_cov.show.{run_id}.txt"));
         if !Command::new(test_exe)
             .env("LLVM_PROFILE_FILE", &profraw_file)