Run cargo fix.

src/context/latex_environment.rs

@@ -13,10 +13,10 @@ pub(crate) struct RenderLatexEnvironment {}
 
 impl RenderLatexEnvironment {
     pub(crate) fn new(
-        config: &Config,
-        output_directory: &Path,
-        output_file: &Path,
-        original: &ILatexEnvironment,
+        _config: &Config,
+        _output_directory: &Path,
+        _output_file: &Path,
+        _original: &ILatexEnvironment,
     ) -> Result<RenderLatexEnvironment, CustomError> {
         Ok(RenderLatexEnvironment {})
     }