From d136c795affe9d3a7522eefe3ccc098a52434de0 Mon Sep 17 00:00:00 2001
From: daurnimator <quae@daurnimator.com>
Date: Fri, 7 Feb 2020 16:12:16 +1100
Subject: [PATCH] Fix bug where stdout was checked instead of stderr

---
 lib/std/build/run.zig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/std/build/run.zig b/lib/std/build/run.zig
index dc4e0df898..b10476fcf0 100644
--- a/lib/std/build/run.zig
+++ b/lib/std/build/run.zig
@@ -185,7 +185,7 @@ pub const RunStep = struct {
         };
 
         var stderr: []const u8 = undefined;
-        switch (self.stdout_behavior) {
+        switch (self.stderr_action) {
             .expect_exact, .expect_matches => {
                 var stderr_file_in_stream = child.stderr.?.inStream();
                 stderr = stderr_file_in_stream.stream.readAllAlloc(self.builder.allocator, max_stdout_size) catch unreachable;