if(!t->IsFrontEngine())CCLOG("Slot %u (%s) has non-front engine train: %s",slot->index,slot->name.c_str(),scope_dumper().VehicleInfo(t));
if(!HasBit(t->flags,VRF_HAVE_SLOT))CCLOG("Slot %u (%s) has train without VRF_HAVE_SLOT: %s",slot->index,slot->name.c_str(),scope_dumper().VehicleInfo(t));
}else{
CCLOG("Slot %u (%s) has non-existent vehicle ID: %u",slot->index,slot->name.c_str(),id);