$ go version
go version go1.9.1 linux/amd64


$ cat > helloworld.go << EOF

package main
import "fmt"
// This is a demonstrative comment!
func main() {
   fmt.Println("Hello World!")
}
EOF

$ go run helloworld.go 
fork/exec /tmp/go-build127438955/command-line-arguments/_obj/exe/helloworld: permission denied

$ mkdir -pv TMPDIR
mkdir: created directory 'TMPDIR'

$ export -p TMPDIR=TMPDIR/

$ go run helloworld.go 
Hello World!