tools: fix built for ut tool (#56925)

ref #55480

BUILD.bazel

@@ -14,6 +14,7 @@ exports_files([
 # gazelle:exclude build/linter/staticcheck
 # gazelle:exclude vendor
 # gazelle:exclude tools/patch-go
+# gazelle:exclude tools/check
 # gazelle:resolve go github.com/bazelbuild/buildtools/build @com_github_bazelbuild_buildtools//build:go_default_library
 gazelle(name = "gazelle")
 

tools/check/BUILD.bazel

@@ -0,0 +1,19 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
+
+go_library(
+    name = "ut_lib",
+    srcs = ["ut.go"],
+    importpath = "github.com/pingcap/tidb/cmd/tidb-server",
+    visibility = ["//visibility:private"],
+    deps = [
+        "@org_golang_x_tools//cover:go_default_library",
+        "@org_uber_go_automaxprocs//maxprocs",
+    ],
+)
+
+go_library(
+    name = "xprog_lib",
+    srcs = ["xprog.go"],
+    importpath = "github.com/pingcap/tidb/cmd/tidb-server",
+    visibility = ["//visibility:private"],
+)

tools/check/ut.go

@@ -302,7 +302,7 @@ func cmdRun(args ...string) bool {
 	taskCh := make(chan task, 100)
 	works := make([]numa, p)
 	var wg sync.WaitGroup
-	for range p {
+	for i := range p {
 		wg.Add(1)
 		go works[i].worker(&wg, taskCh)
 	}