clear up the tests as well, for more robust incremental builds

diff --git a/vbuild-nightly.sh b/vbuild-nightly.sh
index 3fedba7..fe966d3 100755 (executable)
--- a/vbuild-nightly.sh
+++ b/vbuild-nightly.sh
@@ -563,7 +563,7 @@ function main () {
            # update build
            [ -n "$SSH_KEY" ] && setupssh ${BASE} ${SSH_KEY}
            if echo $BUILD_SCM_URL | grep -q git ; then
-               vserver $BASE exec bash -c "cd /build; git pull"
+               vserver $BASE exec bash -c "cd /build; git pull; make tests-clean"
            else
                vserver $BASE exec svn update /build
            fi