+Calculating upgrade...
+0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.' aptget dist-upgrade --trivial-only
+
+echo 'Package: arch:amd64
+Pin: release a=unstable
+Pin-Priority: -1' > rootdir/etc/apt/preferences
+
+testcandidate arch '1.0'
+
+echo '
+Package: arch:i386
+Pin: release a=unstable
+Pin-Priority: -1' >> rootdir/etc/apt/preferences
+
+testcandidate arch '(none)'
+