reproducible: use disorderfs in the 2nd build

hosts/jenkins/etc/pbuilder/rebuild-hooks/B01_cleanup

+#!/bin/sh
+
+set -e
+
+# exit if we are in the same UTS namespace as init ( != 2nd build )
+[ "$(readlink /proc/1/ns/uts)" = "$(readlink /proc/self/ns/uts)" ] && exit 0
+
+# cease using disorderfs
+fusermount -u /tmp/buildd
+mv /tmp/disorderfs /tmp/buildd

hosts/jenkins/etc/pbuilder/rebuild-hooks/C01_cleanup

+#!/bin/sh
+
+set -e
+
+# exit if we are in the same UTS namespace as init ( != 2nd build )
+[ "$(readlink /proc/1/ns/uts)" = "$(readlink /proc/self/ns/uts)" ] && exit 0
+
+# cease using disorderfs
+fusermount -u /tmp/buildd
+mv /tmp/disorderfs /tmp/buildd

hosts/jenkins/etc/pbuilder/rebuild-hooks/D01_modify_environment

@@ -11,3 +11,7 @@ hostname i-capture-the-hostname
 domainname i-capture-the-domain
 echo "I: Adding a custom variable just for the fun of it..." >&2
 export CAPTURE_ENVIRONMENT="I capture the environment"
+
+# use disorderfs
+mv /tmp/buildd /tmp/disorderfs
+disorderfs /tmp/disorderfs /tmp/buildd