From 00efca8c0ccf7374ac8f4d6a521f6977e6d0bce1 Mon Sep 17 00:00:00 2001
From: Shogo Takata <peshogo@gmail.com>
Date: Tue, 20 May 2025 10:28:31 +0900
Subject: [PATCH] dockerTools: fix build failure when building in vm

Fixes build failure for nixos.tests.docker-tools.
The tar command below the changed line relied on the $out directory
being created but it is not being created after the commit below.
97ed6b4565e76286062e6942517a71ae4c9cac72
---
 pkgs/build-support/docker/default.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/build-support/docker/default.nix b/pkgs/build-support/docker/default.nix
index ca3692029181..09096dfc78a2 100644
--- a/pkgs/build-support/docker/default.nix
+++ b/pkgs/build-support/docker/default.nix
@@ -392,6 +392,7 @@ rec {
 
       postMount = ''
         echo "Packing raw image..."
+        mkdir -p $out
         tar -C mnt --hard-dereference --sort=name --mtime="@$SOURCE_DATE_EPOCH" -cf $out/layer.tar .
       '';