message: Add some more debug logging`
diff: @@ -10,7 +10,7 @@ use std::fmt;
  use std::fs;
  use std::path::{Path, PathBuf};
  use std::process::{Child, Command};
  -use tracing::{error, info, trace_span};
  +use tracing::{debug, error, info, trace_span};
  /// Handle to a test currently either PID or a `std::process::Child`
  pub enum TestHandle {
  @@ -209,6 +209,8 @@ fn execute_test(
  if let Some(s) = test.manifest_dir() {
  envars.push(("CARGO_MANIFEST_DIR".to_string(), s.display().to_string()));
  }
  + debug!("Env vars: {:?}", envars);
  + debug!("Args: {:?}", argv);
  match config.engine() {
  TraceEngine::Llvm => {
  // Used for llvm coverage to avoid report naming clashes TODO could have clashes
  