Parses and flattens lists of integer values:
[[[[[[ 0x6 ]]], [[[[[ 0x500 ]]]]], 42_42]]] -> [6, 0x500, 4242]
[[[[[[ 0x6 ]]], [[[[[ 0x500 ]]]]], 42_42]]]
[6, 0x500, 4242]
If you found a crash with make fuzz you can verify it with this command:
make fuzz
bash echo "[[42]" | make run