Enable JsonModelPlugin by default as a test

src/bin.rs

@@ -34,7 +34,7 @@ use core::Config;
 use pathext::canonicalish;
 use project::{Project, ProjectLoadError};
 use plugin::{PluginChain};
-use plugins::{DefaultPlugin, ScriptPlugin};
+use plugins::{DefaultPlugin, JsonModelPlugin, ScriptPlugin};
 use vfs::Vfs;
 use vfs_watch::VfsWatcher;
 
@@ -153,6 +153,7 @@ fn main() {
             lazy_static! {
                 static ref PLUGIN_CHAIN: PluginChain = PluginChain::new(vec![
                     Box::new(ScriptPlugin::new()),
+                    Box::new(JsonModelPlugin::new()),
                     Box::new(DefaultPlugin::new()),
                 ]);
             }

src/plugins/json_model_plugin.rs

@@ -29,7 +29,11 @@ impl Plugin for JsonModelPlugin {
 
                 let mut rbx_item: RbxItem = match serde_json::from_str(contents) {
                     Ok(v) => v,
-                    Err(_) => return TransformFileResult::Pass, // This should be an error in the future
+                    Err(_) => {
+                        eprintln!("Unable to parse JSON Model File named {}", name);
+
+                        return TransformFileResult::Pass; // This should be an error in the future!
+                    },
                 };
 
                 rbx_item.properties.insert("Name".to_string(), RbxValue::String {