some panic in TTL #57112
Description
runtime error: invalid memory address or nil pointer dereference"] [stack="github.com/pingcap/tidb/pkg/ttl/ttlworker.(*baseWorker).loop.func1
/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/pkg/ttl/ttlworker/worker.go:128
runtime.gopanic
/usr/local/go/src/runtime/panic.go:785
runtime.panicmem
/usr/local/go/src/runtime/panic.go:262
runtime.sigpanic
/usr/local/go/src/runtime/signal_unix.go:900
github.com/pingcap/tidb/pkg/ttl/ttlworker.(*TTLTimersSyncer).SyncTimers
/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/pkg/ttl/ttlworker/timer_sync.go:219
github.com/pingcap/tidb/pkg/ttl/ttlworker.(*JobManager).onTimerTick
/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/pkg/ttl/ttlworker/job_manager.go:314
github.com/pingcap/tidb/pkg/ttl/ttlworker.(*JobManager).jobLoop
/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/pkg/ttl/ttlworker/job_manager.go:207
github.com/pingcap/tidb/pkg/ttl/ttlworker.(*baseWorker).loop
/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/pkg/ttl/ttlworker/worker.go:134
github.com/pingcap/tidb/pkg/util.(*WaitGroupWrapper).Run.func1
/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/pkg/util/wait_group_wrapper.go:157