produce a staticcheck failure, using setup-go

.github/workflows/go-check.yml

@@ -9,10 +9,12 @@ jobs:
     name: Go checks
     steps:
       - uses: actions/checkout@v2
-      - uses: WillAbides/setup-go-faster@34c5f5ac9e57768758df0a2ef40b598b3572b11b # v1.5.0
+      - uses: actions/setup-go@v2
         with:
           go-version: "1.16.x"
+      - run: echo $PATH
+      - run: echo $GOROOT 
       - name: Install staticcheck
         run: go install honnef.co/go/tools/cmd/staticcheck@be534f007836a777104a15f2456cd1fffd3ddee8 # v2020.2.2
       - run: go vet ./...
-      - run: staticcheck ./...
+      - run: staticcheck ./... | sed -e "s/\(.*\)\.go/.\/\1.go/g"

main.go

@@ -1,12 +1,19 @@
 package main
 
-import "fmt"
+import (
+	"sync"
+	"fmt"
+)
 
 func main() {
 	fmt.Println("hello")
 	fmt.Println("bye")
 }
 
 func mult(a, b int) int {
+	var l sync.Mutex
+	l.Lock()
+	l.Unlock()
+
 	return a * b
 }