Attempting to install community/go 2:1.7.4-1 and community/go-tools 2:1.7.4-1 yields:
$this->bbcode_second_pass_code('', 'error: failed retrieving file 'go-2:1.7.4-1-armv7h.pkg.tar.xz' from mirror.archlinuxarm.org : The requested URL returned error: 404
error: failed retrieving file 'go-tools-2:1.7.4-1-armv7h.pkg.tar.xz' from mirror.archlinuxarm.org : The requested URL returned error: 404')