From d41af23a6c879fe2b5f88e40e0ad87db099a23cf Mon Sep 17 00:00:00 2001
From: Farid Zakaria <farid.m.zakaria@gmail.com>
Date: Thu, 18 Nov 2021 14:54:50 -0800
Subject: [PATCH] Fix heap use after free in progress-bar.cc

Fix some heap-use-after-free in progress-bar.cc

These are somewhat tricky failures here due to temporary variable
creation and string_view
---
 src/libmain/progress-bar.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libmain/progress-bar.cc b/src/libmain/progress-bar.cc
index 63955eed1..f4306ab91 100644
--- a/src/libmain/progress-bar.cc
+++ b/src/libmain/progress-bar.cc
@@ -11,7 +11,7 @@
 
 namespace nix {
 
-static std::string getS(const std::vector<Logger::Field> & fields, size_t n)
+static std::string_view getS(const std::vector<Logger::Field> & fields, size_t n)
 {
     assert(n < fields.size());
     assert(fields[n].type == Logger::Field::tString);