Issue Description

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If you didn't find your issue mentioned, please give a thorough description of the issue you're seeing.
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I've tried the vagrant automatic build for ubuntu 3 times and had the same failure while installing php5.
The url it complains about seems fine when loading in my browser (https://mail.gnome.org/archives/xml/2012-August/txtbgxGXAvz4N.txt) so not sure what's wrong there.

In my third attempt, I also installed the winrm & winrm-fs plugins as per the General Issues but that didn't seem to help.

Thanks for any help!

Host System

• OS: Manjaro Linux x86_64
• Packer Version: 1.8.5
• Vagrant Version: 2.3.4
• VirtualBox Version: n/a
• libvirt Version: 9.0.0

Command Output

https://pastebin.com/YjwcbN67