https://codesandbox.io/s/elastic-mayer-rzz4h2?file=/package.json

This is supposed to `console.error` but it doesn't.

17 warns: https://codesandbox.io/s/admiring-minsky-sze07m?file=/src/App.js
prepareFreshStack(root, lanes);
  }
  if (__DEV__) {
    if (enableDebugTracing) {
      logRenderStarted(lanes);
    }
  }
  if (enableSchedulingProfiler) {
    markRenderStarted(lanes);
  }
  do {
    try {
      workLoopSync();
      break;
    } catch (thrownValue) {
      handleError(root, thrownValue);
    }
  } while (true);
  resetContextDependencies();
  executionContext = prevExecutionContext;
  popDispatcher(prevDispatcher);
  if (workInProgress !== null) {
     
    throw new Error(
      'Cannot commit an incomplete root. This error is likely caused by a ' +
        'bug in React. Please file an issue.',
    );
  }
  if (__DEV__) {
    if (enableDebugTracing) {