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
markCommitStopped,
  markComponentRenderStopped,
  markComponentSuspended,
  markComponentErrored,
  markLayoutEffectsStarted,
  markLayoutEffectsStopped,
  markPassiveEffectsStarted,
  markPassiveEffectsStopped,
  markRenderStarted,
  markRenderYielded,
  markRenderStopped,
  onCommitRoot as onCommitRootDevTools,
  onPostCommitRoot as onPostCommitRootDevTools,
} from './ReactFiberDevToolsHook.old';
import {onCommitRoot as onCommitRootTestSelector} from './ReactTestSelectors';
import {releaseCache} from './ReactFiberCacheComponent.old';
import {
  isLegacyActEnvironment,
  isConcurrentActEnvironment,
} from './ReactFiberAct.old';
import {processTransitionCallbacks} from './ReactFiberTracingMarkerComponent.old';
const ceil = Math.ceil;
const {
  ReactCurrentDispatcher,
  ReactCurrentOwner,
  ReactCurrentBatchConfig,
  ReactCurrentActQueue,
} = ReactSharedInternals;
type ExecutionContext = number;
export const NoContext =  0b000;