Memory stay even the engine out of lifetime

[giteewif]

I use the wasmtime api of loading wasm to get a module, when a module out of lifetime in rust code, i get the memory , and figure out that the memory also cost a lot. Is the compile memory still stay even the module out of lifetime? In rust , when the module out of time i think it would be freed out. And i also test on engine. Test is like the figure below.