Implement -Ztrack-diagnostics

clippy_lints/src/doc.rs

@@ -691,6 +691,7 @@ fn has_needless_main(code: String, edition: Edition) -> bool {
                     false,
                     None,
                     false,
+                    false,
                 );
                 let handler = Handler::with_emitter(false, None, Box::new(emitter));
                 let sess = ParseSess::with_span_handler(handler, sm);

src/driver.rs

@@ -179,6 +179,7 @@ fn report_clippy_ice(info: &panic::PanicInfo<'_>, bug_report_url: &str) {
         false,
         None,
         false,
+        false,
     ));
     let handler = rustc_errors::Handler::with_emitter(true, None, emitter);