Make sure to run apt-get update first

deps/rabbitmq_auth_backend_ldap/Vagrantfile

@@ -64,6 +64,7 @@ Vagrant.configure(2) do |config|
   # Enable provisioning with a shell script. Additional provisioners such as
   # Puppet, Chef, Ansible, Salt, and Docker are also available. Please see the
   # documentation for more information about their specific syntax and use.
+  config.vm.provision "shell", inline: "sudo apt-get -y update"
   config.vm.provision "file", source: "example", destination: "~"
   config.vm.provision "shell", inline: "/bin/sh /home/vagrant/example/setup.sh"
   # config.vm.provision "shell", inline: <<-SHELL