Fix clippy errors

.zed/settings.json

@@ -9,7 +9,12 @@
         "rust-analyzer": {
             "initialization_options": {
                 "check": {
-                    "command": "clippy"
+                    "command": "clippy",
+                    "extraArgs": [
+                        "--",
+                        "-D",
+                        "warnings"
+                    ]
                 }
             }
         }