Yes, basically. The Rust standard library has data structures and functions which require memory allocation, and _will_ panic on allocation failure. But the all

Yes, basically. The Rust standard library has data structures and functions which require memory allocation, and _will_ panic on allocation failure. But the allocating subset of the standard library is a separate module, which is usually turned off in embedded or kernel-level code. The current prototype uses it to speed up development, but the long term plan as far as I understand is to replace it or augment the current implementation to support fallible allocation (which is being worked on anyway).