Example to reproduce rubygems/bundler#4568 issue

issue_bundler_4568.rb

#!/usr/bin/env ruby
# forzen_string_literal: true

def run
  thread = Thread.new do
    puts "Running..."
    nil while true 
  end

  begin
    thread.run.join
  rescue Interrupt
  end
end

puts "Starting..."

run

puts "Shutting down gracefully"
# Gracefull shutdown code here