Multiple progs try to install new packages with apt

[enescakir]

It may not be a big issue. Various progs install new packages with apt while preparing the VM host. They conflict and cause failures. It would be beneficial to resolve this issue without displaying an exception message.

---STDOUT---


---STDERR---
E: Could not get lock /var/lib/dpkg/lock-frontend. It is held by process 3042 (apt-get)
E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?
	from host/bin/prep_host.rb:93:in `<main>'