clone atpath to avoid borrow issue

tests/common/macros.rs

@@ -61,8 +61,6 @@ macro_rules! new_ucmd {
 macro_rules! at_and_ucmd {
   () => ({
     let ts = TestScenario::new(util_name!());
-    #[allow(unused_mut)]
-    let mut ucmd = ts.ucmd();
-    (ts.fixtures, ucmd) 
+    (ts.fixtures.clone(), ts.ucmd())
   })
 }

tests/common/util.rs

@@ -181,6 +181,7 @@ pub fn get_root_path() -> &'static str {
 
 /// Object-oriented path struct that represents and operates on
 /// paths relative to the directory it was constructed for.
+#[derive(Clone)]
 pub struct AtPath {
     pub subdir: PathBuf,
 }