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
if (__DEV__ && enableStrictEffects) {
     T
     s
     M
    setCurrentDebugFiberInDEV(fiber);
    invokeEffectsInDev(fiber, MountLayoutDev, invokeLayoutEffectUnmountInDEV);
    if (hasPassiveEffects) {
      invokeEffectsInDev(
        fiber,
        MountPassiveDev,
        invokePassiveEffectUnmountInDEV,
      );
    }
    invokeEffectsInDev(fiber, MountLayoutDev, invokeLayoutEffectMountInDEV);
    if (hasPassiveEffects) {
      invokeEffectsInDev(fiber, MountPassiveDev, invokePassiveEffectMountInDEV);
    }
    resetCurrentDebugFiberInDEV();
  }
}
function invokeEffectsInDev(
  firstChild: Fiber,
  fiberFlags: Flags,
  invokeEffectFn: (fiber: Fiber) => void,
): void {
  if (__DEV__ && enableStrictEffects) {
     W
     T
    let current = firstChild;
    let subtreeRoot = null;