Fix crash when using cache and there are 521 or 314 warnings
Fix crash when using cache and there are 521 or 314 warnings

TODO: rework serialization to avoid errors like this. Is
cache file size that much of a concern to require packing
tables into arrays like that?

mpeterv/luacheck,linuxmaniac/luacheck,xpol/luacheck,xpol/luacheck,xpol/luacheck,mpeterv/luacheck,linuxmaniac/luacheck,mpeterv/luacheck