Automatically inherit workspace lints when running cargo new/init

Signed-off-by: hi-rustin <rustin.liu@gmail.com>

Author: 0xPoe

src/cargo/ops/cargo_new.rs

@@ -820,6 +820,18 @@ fn mk(config: &Config, opts: &MkOptions<'_>) -> CargoResult<()> {
                     workspace_package_keys,
                 )
             }
+
+            // Try to inherit the workspace lints key if it exists.
+            if config.cli_unstable().lints
+                && workspace_document
+                    .get("workspace")
+                    .and_then(|workspace| workspace.get("lints"))
+                    .is_some()
+            {
+                let mut table = toml_edit::Table::new();
+                table["workspace"] = toml_edit::value(true);
+                manifest["lints"] = toml_edit::Item::Table(table);
+            }
         }
     }