work around windows

codex/slots/proofs/backends/asynccircoms.nim

@@ -31,8 +31,7 @@ proc prove*[H](
 ): Future[?!CircomProof] {.async.} =
   ## Generates proof using circom-compat asynchronously
   ##
-  let queueRes: ?!SignalQueuePtr[?!CircomProof] = newSignalQueue[?!CircomProof](maxItems = 1)
-  without queue =? queueRes, err:
+  without queue =? newSignalQueue[?!CircomProof](maxItems = 1), err:
     return failure(err)
 
   proc spawnTask() =

codex/utils/asyncthreads.nim

@@ -35,7 +35,8 @@ proc newSignalQueue*[T](
   result = success cast[ptr SignalQueue[T]](allocShared0(sizeof(SignalQueue[T])))
   let sigRes = ThreadSignalPtr.new()
   if sigRes.isErr():
-    return failure(sigRes.error())
+    let msg: string = sigRes.error()
+    return failure((ref CatchableError)(msg: msg))
   result[].signal = sigRes.get()
   result[].chan.open(maxItems)