fix(pool): runner's error listener causing MaxListenersExceededWarning (#8820)

Author: AriPerkkio

packages/vitest/src/node/pools/pool.ts

@@ -76,12 +76,6 @@ export class Pool {
  const activeTask = { task, resolver, method, cancelTask }
  this.activeTasks.push(activeTask)
 
- runner.on('error', (error) => {
- resolver.reject(
- new Error(`[vitest-pool]: Worker ${task.worker} emitted error.`, { cause: error }),
- )
- })
-
  async function cancelTask() {
  await runner.stop()
  resolver.reject(new Error('Cancelled'))
@@ -104,6 +98,12 @@ export class Pool {
  runner.on('message', onFinished)
 
  if (!runner.isStarted) {
+ runner.on('error', (error) => {
+ resolver.reject(
+ new Error(`[vitest-pool]: Worker ${task.worker} emitted error.`, { cause: error }),
+ )
+ })
+
  const id = setTimeout(
  () => resolver.reject(new Error(`[vitest-pool]: Timeout starting ${task.worker} runner.`)),
  WORKER_START_TIMEOUT,