jenkins: call fail() in a error case

fail() saves all files in an archive for further investigations.
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

test/jenkins/criu-iter.sh

@@ -5,4 +5,4 @@ prep
 mkdir -p test/dump
 mount -t tmpfs dump test/dump
 cd test
-./zdtm.py run --all --parallel 4 --iter 3 -x 'maps04'
+./zdtm.py run --all --parallel 4 --iter 3 -x 'maps04' || fail

test/jenkins/criu-sibling.sh

@@ -5,4 +5,4 @@ prep
 mkdir -p test/dump
 mount -t tmpfs dump test/dump
 cd test
-./zdtm.py run --all --sibling --parallel 4
+./zdtm.py run --all --sibling --parallel 4 || fail