diff --git a/rust/hgcli/src/main.rs b/rust/hgcli/src/main.rs
--- a/rust/hgcli/src/main.rs
+++ b/rust/hgcli/src/main.rs
@@ -177,8 +177,7 @@
         python27_sys::PySys_SetArgvEx(args.len() as c_int, argv.as_ptr() as *mut *mut i8, 0);
     }
 
-    let result;
-    {
+    let result = {
         // These need to be dropped before we call Py_Finalize(). Hence the
         // block.
         let gil = Python::acquire_gil();
@@ -189,7 +188,7 @@
         // TODO this may cause issues on Windows due to the CRT mismatch.
         // Investigate if we can intercept sys.exit() or SystemExit() to
         // ensure we handle process exit.
-        result = match run_py(&env, py) {
+        match run_py(&env, py) {
             // Print unhandled exceptions and exit code 1, as this is what
             // `python` does.
             Err(err) => {
@@ -205,8 +204,8 @@
                 };
                 Err(code)
             }
-        };
-    }
+        }
+    };
 
     unsafe {
         python27_sys::Py_Finalize();