Do not enable -race for GOARCH=386

Makefile

@@ -50,6 +50,12 @@ ifneq ($(tag),)
 	LDFLAGS += -X main.version=$(version)
 endif
 
+# Go built-in race detector works only for 64 bits architectures.
+ifneq ($(GOARCH), 386)
+	race_detector := -race
+endif
+
+
 GOFILES ?= $(shell git ls-files '*.go')
 GOFMT ?= $(shell gofmt -l -s $(filter-out plugins/parsers/influx/machine.go, $(GOFILES)))
 
@@ -89,7 +95,7 @@ telegraf:
 
 .PHONY: test
 test:
-	go test -race -short ./...
+	go test -short $(race_detector) ./...
 
 .PHONY: fmt
 fmt:
@@ -107,12 +113,12 @@ fmtcheck:
 
 .PHONY: test-windows
 test-windows:
-	go test -race -short ./plugins/inputs/ping/...
-	go test -race -short ./plugins/inputs/win_perf_counters/...
-	go test -race -short ./plugins/inputs/win_services/...
-	go test -race -short ./plugins/inputs/procstat/...
-	go test -race -short ./plugins/inputs/ntpq/...
-	go test -race -short ./plugins/processors/port_name/...
+	go test -short $(race_detector) ./plugins/inputs/ping/...
+	go test -short $(race_detector) ./plugins/inputs/win_perf_counters/...
+	go test -short $(race_detector) ./plugins/inputs/win_services/...
+	go test -short $(race_detector) ./plugins/inputs/procstat/...
+	go test -short $(race_detector) ./plugins/inputs/ntpq/...
+	go test -short $(race_detector) ./plugins/processors/port_name/...
 
 .PHONY: vet
 vet:
@@ -139,7 +145,7 @@ check: fmtcheck vet
 
 .PHONY: test-all
 test-all: fmtcheck vet
-	go test -race ./...
+	go test $(race_detector) ./...
 
 .PHONY: check-deps
 check-deps: