Add some debug echos, trigger cleanup while mounts are present

build_files/cleanup.sh

@@ -2,6 +2,17 @@
 
 set -ouex pipefail
 
+echo "Let's see."
+echo "/etc/passwd contents:"
+cat /etc/passwd
+echo "/usr/lib/passwd contents:"
+cat /usr/lib/passwd
+echo ""
+echo "/etc/group contents:"
+cat /etc/group
+echo "/usr/lib/group contents:"
+cat /usr/lib/group
+
 ## Handle files that rpm-ostree would normally remove
 ## Borrowed from: https://github.com/hhd-dev/rechunk/blob/master/1_prune.sh#L33
 if [ -f /etc/passwd ]; then