Auto merge of #80530 - m-ou-se:rollup-zit69ko, r=m-ou-se

Rollup of 9 pull requests

Successful merges:

 - #78934 (refactor: removing library/alloc/src/vec/mod.rs ignore-tidy-filelength)
 - #79479 (Add `Iterator::intersperse`)
 - #80128 (Edit rustc_ast::ast::FieldPat docs)
 - #80424 (Don't give an error when creating a file for the first time)
 - #80458 (Some Promotion Refactoring)
 - #80488 (Do not create dangling &T in Weak<T>::drop)
 - #80491 (Miri: make size/align_of_val work for dangling raw ptrs)
 - #80495 (Rename kw::Invalid -> kw::Empty)
 - #80513 (Add regression test for #80062)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

1 files changed, 4 insertions, 2 deletions

diff --git a/src/bootstrap/bootstrap.py b/src/bootstrap/bootstrap.py
index 97f40815b87..b8bae69d063 100644
--- a/src/bootstrap/bootstrap.py
+++ b/src/bootstrap/bootstrap.py
@@ -351,11 +351,13 @@ def output(filepath):
     with open(tmp, 'w') as f:
         yield f
     try:
-        os.remove(filepath)  # PermissionError/OSError on Win32 if in use
-        os.rename(tmp, filepath)
+        if os.path.exists(filepath):
+            os.remove(filepath)  # PermissionError/OSError on Win32 if in use
     except OSError:
         shutil.copy2(tmp, filepath)
         os.remove(tmp)
+        return
+    os.rename(tmp, filepath)
 
 
 class RustBuild(object):