6 return cached;
7 }
8 yield* artifacts.set(id, Deferred.await(deferred));
9- const result = yield* eff;
10- yield* Deferred.succeed(deferred, result);
11+ // Settle waiters on failure too, or every later caller hangs.
12+ const result = yield* eff.pipe(Effect.onExit((exit) => Deferred.done(deferred, exit)));
13 yield* artifacts.set(id, result);
14 return result;
15 });