From 63e5633d6286e6c4bf94c2c6bb6bf52281bd28db Mon Sep 17 00:00:00 2001
From: Tibor Vass <tibor@docker.com>
Date: Thu, 26 Sep 2019 18:01:12 +0000
Subject: [PATCH] build: fix scoping issue in closure inside loop

Signed-off-by: Tibor Vass <tibor@docker.com>
---
 build/build.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/build/build.go b/build/build.go
index f6c7eb21..9d60695f 100644
--- a/build/build.go
+++ b/build/build.go
@@ -541,7 +541,7 @@ func Build(ctx context.Context, drivers []DriverInfo, opt map[string]Options, do
 	multiTarget := len(opt) > 1
 
 	for k, opt := range opt {
-		err := func() error {
+		err := func(k string) error {
 			opt := opt
 			dps := m[k]
 			multiDriver := len(m[k]) > 1
@@ -685,7 +685,7 @@ func Build(ctx context.Context, drivers []DriverInfo, opt map[string]Options, do
 			}
 
 			return nil
-		}()
+		}(k)
 		if err != nil {
 			return nil, err
 		}