message: Added error printout for incorrect manifest
diff: @@ -84,7 +84,10 @@ pub fn launch_tarpaulin(config: &Config) -> Result<(TraceMap, bool), i32> {
  let _ = cargo_config.configure(0u32, flag_quiet, &None, false, false, &None, &[]);
  let workspace = Workspace::new(config.manifest.as_path(), &cargo_config)
  - .map_err(|_| 1i32)?;
  + .map_err(|e| {
  + println!("Cargo error: {}", e);
  + 1i32
  + })?;
  setup_environment();
  