switch back to both arch instead of 'any'. Using $CARCH in the package.

PKGBUILD

@@ -2,9 +2,9 @@
 
 pkgname=filesystem
 pkgver=2016.11
-pkgrel=1
+pkgrel=2
 pkgdesc='Base Arch Linux filesystem'
-arch=('any')
+arch=('i686' 'x86_64')
 license=('GPL')
 url='https://www.archlinux.org'
 groups=('base')