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
* @flow
 */
import type {Wakeable} from 'shared/ReactTypes';
import type {Fiber, FiberRoot} from './ReactInternalTypes';
import type {Lanes, Lane} from './ReactFiberLane.old';
import type {SuspenseState} from './ReactFiberSuspenseComponent.old';
import type {StackCursor} from './ReactFiberStack.old';
import type {Flags} from './ReactFiberFlags';
import type {FunctionComponentUpdateQueue} from './ReactFiberHooks.old';
import type {EventPriority} from './ReactEventPriorities.old';
import type {
  PendingTransitionCallbacks,
  TransitionObject,
  Transition,
} from './ReactFiberTracingMarkerComponent.old';
import {
  warnAboutDeprecatedLifecycles,
  enableSuspenseServerRenderer,
  replayFailedUnitOfWorkWithInvokeGuardedCallback,
  enableCreateEventHandleAPI,
  enableProfilerTimer,
  enableProfilerCommitHooks,
  enableProfilerNestedUpdatePhase,
  enableProfilerNestedUpdateScheduledHook,
  deferRenderPhaseUpdateToNextBatch,
  enableDebugTracing,
  enableSchedulingProfiler,
  disableSchedulerTimeoutInWorkLoop,
  enableStrictEffects,
  skipUnmountedBoundaries,