OK: In execute_without_sync, after callling {FAILER}.fail.
OK: In make, after execute_without_sync.
OK: In sync, after calling {FAILER}.counter.
OK: In make, after sync.
OK: In execute_with_sync, after callling {FAILER}.fail.
OK: In rescue of execute_with_sync.
OK: In rescue of make.
Execution completed