Try again with one thread

Author: pepeiborra

test/functional/Main.hs

@@ -21,17 +21,19 @@ import Progress
 import Reference
 import Rename
 import Symbol
+import System.Environment
 import TypeDefinition
 
 main :: IO ()
-main =
+main = do
+    setEnv "TASTY_NUM_THREADS" "1"
     -- ingredient: xml runner writes json file of test results (https://github.com/ocharles/tasty-ant-xml/blob/master/Test/Tasty/Runners/AntXML.hs)
     --             rerunningTests allow rerun of failed tests (https://github.com/ocharles/tasty-rerun/blob/master/src/Test/Tasty/Ingredients/Rerun.hs)
     defaultMainWithIngredients [
           antXMLRunner
         , rerunningTests [ listingTests, consoleTestReporter ]
         ]
-    $ testGroup "haskell-language-server" [
+      $ testGroup "haskell-language-server" [
           Command.tests
         , Completion.tests
         , Deferred.tests