When installing pkgdeps from repositories more errno values are handled
from xbps-bin, this help us to find why a package failed to install.
Also stdout/stderr output from xbps-bin is redirected to
$wrksrc/.xbps_install_dependency_$pkgdepname.log to see how it was
installed or why it failed to install.
Do autoremove packages in more places to be sure that if something went
wrong those packages are always removed.