go install net: open /usr/lib/go/pkg/linux_amd64/net.a: permission denied

[Dr-Terrible]

This compilation error happens because you have dev-go/go-net::gentoo-0_pre20150804 installed in your system. It's a very well known bug.

That ebuild is stale and broken by design; uninstall it with emerge -C dev-go/go-net, and your package should be able to successfully continue the compilation.

If the error persists after you have removed dev-go/go-net, then chances are that those files in /usr/lib/go/pkg/linux_amd64/* are leftovers from a previous broken session of sys-apps/portage, hence they are still present in your filesystem despite the uninstall of dev-go/go-net.

In case, run this command¹ from your terminal: qfile /usr/lib/go/pkg/linux_amd64/net.a. If qfile doesn't shows you an output such as: dev-go/go-net (/usr/lib/go/pkg/linux_amd64/net.a), then that file is an orphan cluttering your system. Just manually remove it.

Unfortunately there is nothing I can do to fix this scenario, or to prevent it, since I'm not the maintainer of that ebuild. Feel free to enquiry Gentoo developers for a proper solution.

¹- qfile is provided by package app-portage/portage-utils;

I'll leave this bug report open as a reminder for future users.