librust-alloc-no-stdlib-dev 2.0.4-1 (amd64 binary) in ubuntu lunar

 This allows a package with nostd to allocate memory dynamically and be used
 either with a custom allocator, items on the stack, or by a package that wishes
 to simply use Box<>. It also provides options to use calloc or a mutable global
 variable for pre-zeroed memory
 .
 This package contains the source for the Rust alloc-no-stdlib crate, packaged
 by debcargo for use with cargo and dh-cargo.