From 5153db136e8419beb217340500a97db553ddabbe Mon Sep 17 00:00:00 2001
From: Mark Rousskov <mark.simulacrum@gmail.com>
Date: Thu, 5 Sep 2019 18:40:54 -0400
Subject: [PATCH] Explicitly create test tempdir

---
 src/bootstrap/test.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/bootstrap/test.rs b/src/bootstrap/test.rs
index 97b28ed9e96c..00d87f3841cf 100644
--- a/src/bootstrap/test.rs
+++ b/src/bootstrap/test.rs
@@ -1327,7 +1327,10 @@ impl Step for Compiletest {
             cmd.env("RUSTC_PROFILER_SUPPORT", "1");
         }
 
-        cmd.env("RUST_TEST_TMPDIR", builder.out.join("tmp"));
+        let tmp = builder.out.join("tmp");
+        std::fs::create_dir_all(&tmp).unwrap();
+        cmd.env("RUST_TEST_TMPDIR", tmp);
+
 
         cmd.arg("--adb-path").arg("adb");
         cmd.arg("--adb-test-dir").arg(ADB_TEST_DIR);