fmt.Fprintf(w, "$ go env\n")
	printGoEnv(w)
	printGoDetails(w)
	printOSDetails(w)
	printCDetails(w)
	fmt.Fprintf(w, "</pre></details>\n\n")
}

func printGoEnv(w io.Writer) {
	env := envcmd.MkEnv()
	env = append(env, envcmd.ExtraEnvVars()...)
	env = append(env, envcmd.ExtraEnvVarsCostly()...)
	envcmd.PrintEnv(w, env, false)
}

func printGoDetails(w io.Writer) {