Panic in RangeBackwards

[dobrac]

Hi, we are experiencing panic in RangeBackwards function. ttlcache version v3.3.1-0.202502071402, includes commit (e25850a) because of deadlocks.

Here is the relevant part of the stacktrace:

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x10 pc=0x714220]

goroutine 8 [running]:
container/list.(*Element).Prev(0xc00018c200?)
	/opt/hostedtoolcache/go/1.23.7/x64/src/container/list/list.go:40
github.com/jellydator/ttlcache/v3.(*Cache[...]).RangeBackwards(0x152d480, 0xc000026e48)
	/home/runner/go/pkg/mod/github.com/jellydator/ttlcache/v3@v3.3.1-0.202502071402[43](https://github.com/e2b-dev/infra/actions/runs/15070929902/job/42366869657#step:6:44)-aefc35918359/cache.go:582 +0xb4

[davseby]

By any chance, were you performing any deletions during the iterations or perhaps, you know that the cache was not empty when calling the method and became empty while iterating over it?