tests/docker: make --enable-rust overridable with EXTRA_CONFIGURE_OPTS

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Link: https://lore.kernel.org/r/20251007153406.421032-1-marcandre.lureau@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/tests/docker/common.rc b/tests/docker/common.rc
index 752f4f3..79d533a 100755
--- a/tests/docker/common.rc
+++ b/tests/docker/common.rc
@@ -53,8 +53,8 @@
     config_opts="--enable-werror \
                  ${TARGET_LIST:+--target-list=${TARGET_LIST}} \
                  --prefix=$INSTALL_DIR \
-                 $QEMU_CONFIGURE_OPTS $EXTRA_CONFIGURE_OPTS \
                  $enable_rust \
+                 $QEMU_CONFIGURE_OPTS $EXTRA_CONFIGURE_OPTS \
                  $@"
     echo "Configure options:"
     echo $config_opts