Chrome Webdriver hangup on ruby 2.6

[ShockwaveNN]

1. Create a simple script with content:

require 'headless'
require 'selenium-webdriver'

headless_instance = Headless.new
headless_instance.start
webdriver_options = { service: Selenium::WebDriver::Chrome::Service.new(path: '/usr/bin/chromedriver') }
driver = Selenium::WebDriver.for :chrome, webdriver_options
driver.navigate.to('https://www.google.com')
driver.quit

2. Run it on Ruby 2.5.5 - everything fine, script exit after around one second
3. Run it on Ruby 2.6.3 - script hang up

If headless_instance.start commented out - everything fin on both rubies version.

Is there any more detailed logs to trace why there is hangup?

Versions:

headless (2.3.1)
selenium-webdriver (3.142.3)

google-chrome-stable 77.0.3865.90-1
chromedriver 77.0.3865.40
Ubuntu 18.04

[ShockwaveNN]

Seems this problem is fixed by removed lines in my project

Selenium::WebDriver::Service::START_TIMEOUT = 120
Selenium::WebDriver::Service::STOP_TIMEOUT = 120

This lines was added a long time ago and I'm not sure that they do something usefull, but them cause problems on ruby 2.6