fix an invalid free having to do with bound functions
fix an invalid free having to do with bound functions

this should fix the drone CI failure

raulgrell/zig,andrewrk/zig,zig-lang/zig,zig-lang/zig,raulgrell/zig,zig-lang/zig,andrewrk/zig,raulgrell/zig,raulgrell/zig,raulgrell/zig