[tal8d]

Try harder: https://doc.rust-lang.org/std/alloc/trait.GlobalAlloc.html#t...

You can implement your own global allocator, use an existing crate, or (in the case of user applications) use the system's. That is for the stdlib level, not even core...

[muricula]

Nope, the GP is still correct. If your custom allocator fails, anything created with Box::new or similar will panic.