Properly name the field

crates/rust-analyzer/src/cli/diagnostics.rs

@@ -36,11 +36,12 @@ pub fn diagnostics(path: &Path, load_output_dirs: bool, with_proc_macro: bool) -
     for module in work {
         let file_id = module.definition_source(db).file_id.original_file(db);
         if !visited_files.contains(&file_id) {
-            let crate_name = if let Some(name) = module.krate().display_name(db) {
-                format!("{}", name)
-            } else {
-                String::from("unknown")
-            };
+            let crate_name = module
+                .krate()
+                .declaration_name(db)
+                .as_ref()
+                .map(ToString::to_string)
+                .unwrap_or_else(|| "unknown".to_string());
             println!("processing crate: {}, module: {}", crate_name, _vfs.file_path(file_id));
             for diagnostic in analysis.diagnostics(&DiagnosticsConfig::default(), file_id).unwrap()
             {