func (c *Container) SetKnownExitCode(i *int) {
	c.lock.Lock()
	defer c.lock.Unlock()

	c.KnownExitCodeUnsafe = i
}
func (c *Container) SetKnownExitCode(i *int) {
	c.lock.Lock()
	defer c.lock.Unlock()

	c.KnownExitCodeUnsafe = i
}
// SetKnownExitCode sets exit code field in container struct