From 5e41ec2cccb86db1a9677d2bfb9d2f623755f3de Mon Sep 17 00:00:00 2001
From: king6cong <king6cong@gmail.com>
Date: Wed, 1 Feb 2017 11:49:24 +0800
Subject: [PATCH] rename other than copy/remove

---
 src/librustc_driver/driver.rs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/librustc_driver/driver.rs b/src/librustc_driver/driver.rs
index a04a5b106b8f..6fe6541c1d91 100644
--- a/src/librustc_driver/driver.rs
+++ b/src/librustc_driver/driver.rs
@@ -1084,10 +1084,9 @@ pub fn phase_5_run_llvm_passes(sess: &Session,
         // are going to build an executable
         if sess.opts.output_types.contains_key(&OutputType::Exe) {
             let f = outputs.path(OutputType::Object);
-            fs::copy(&f,
+            fs::rename(&f,
                      f.with_file_name(format!("{}.0.o",
                                               f.file_stem().unwrap().to_string_lossy()))).unwrap();
-            fs::remove_file(f).unwrap();
         }
 
         // Remove assembly source, unless --save-temps was specified