Fix clippy warning

Author: antoyo

Cargo.toml

@@ -33,6 +33,7 @@ gccjit = "2.8"
 [dev-dependencies]
 boml = "0.3.1"
 lang_tester = "0.8.0"
+tempfile = "3.20.0"
 
 [profile.dev]
 # By compiling dependencies with optimizations, performing tests gets much faster.

src/lib.rs

@@ -205,7 +205,7 @@ impl CodegenBackend for GccCodegenBackend {
         // NOTE: try the LTO frontend and check if it errors out. If so, do not embed the bitcode.
         {
             let temp_dir = TempDir::new().expect("cannot create temporary directory");
-            let temp_file = temp_dir.into_path().join("result.asm");
+            let temp_file = temp_dir.keep().join("result.asm");
             let context = Context::default();
             let object_file_path = temp_file.to_str().expect("path to str");
             context.compile_to_file(gccjit::OutputKind::ObjectFile, object_file_path);