Bump the stack limit

travis.hs

@@ -8,7 +8,7 @@ main :: IO ()
 main = do
     let timed x = do
             putStrLn $ "\n\nSearching for " ++ x
-            (time,_) <- duration $ system_ $ "hoogle +RTS -T -M2.5G -K2000K -RTS " ++ show x
+            (time,_) <- duration $ system_ $ "hoogle +RTS -T -M2G -K10M -RTS " ++ show x
             putStrLn $ "Search " ++ show x ++ " took " ++ showDuration time
             putStrLn "\n\n"
     retry 3 $ timed "generate" >> sleep 10