diff --git a/3m/cron.sh b/3m/cron.sh
index f5f20e3..9a93fc0 100755
--- a/3m/cron.sh
+++ b/3m/cron.sh
@@ -1,27 +1,42 @@
 #!/bin/bash
 
-set -x -e
-
-cd ~/publik-bi/3m/
-export PLATFORM=${PLATFORM:-prod}
-DB=auquotidien-bi
-TEMPDB=$DB-temp
+set -e
 
+STDOUT=`tempfile`
+STDERR=`tempfile`
 TEMP_DUMP=`tempfile`
-trap "rm -f $TEMP_DUMP" INT TERM EXIT
 
-dropdb $TEMPDB || true
-createdb $TEMPDB
-pg_dump -Oc auquotidien >$TEMP_DUMP
-psql $TEMPDB -f $TEMP_DUMP
-psql $TEMPDB -f 3m_$PLATFORM.sql
 
-# minimize downtime
-/sbin/start-stop-daemon --stop --pidfile slicer-$PLATFORM.pid --oknodo --retry 5
-psql -c "ALTER DATABASE \"$DB\" RENAME TO \"$DB-old\"" auquotidien
-psql -c "ALTER DATABASE \"$TEMPDB\" RENAME TO \"$DB\"" auquotidien
-/sbin/start-stop-daemon --start --background --make-pidfile \
-   --pidfile slicer-$PLATFORM.pid --oknodo --startas ./run-slicer.sh \
-   --chdir .
 
-dropdb $DB-old
+(
+        set -x
+	cd ~/publik-bi/3m/
+	export PLATFORM=${PLATFORM:-prod}
+	DB=auquotidien-bi
+	TEMPDB=$DB-temp
+
+
+	trap "rm -f $TEMP_DUMP $LOGFILE" INT TERM EXIT
+	dropdb $TEMPDB || true
+	createdb $TEMPDB
+	pg_dump -O auquotidien >$TEMP_DUMP
+	psql $TEMPDB -f $TEMP_DUMP
+	psql $TEMPDB -f 3m_$PLATFORM.sql
+
+
+	# minimize downtime
+	/sbin/start-stop-daemon --stop --pidfile slicer-$PLATFORM.pid --oknodo --retry 5
+	psql -c "ALTER DATABASE \"$DB\" RENAME TO \"$DB-old\"" auquotidien
+	psql -c "ALTER DATABASE \"$TEMPDB\" RENAME TO \"$DB\"" auquotidien
+	/sbin/start-stop-daemon --start --background --make-pidfile \
+	   --pidfile slicer-$PLATFORM.pid --oknodo --startas ./run-slicer.sh \
+	   --chdir .
+	dropdb $DB-old
+) >$STDOUT 2>$STDERR
+
+if [[ "$?" != "0" ]]; then
+        S=$?
+        cat $STDOUT
+        cat $STDERR
+	echo Exited with status $S
+fi