Crate with parts of Rust std library ( different implementations, features not yet stabilised etc ), in particular Box, Vec, Rc, String and collections::{ BTreeMap, BTreeSet, HashMap, HashSet }.
Box, Rc and String currently only have minimal methods/traits implemented.
HashMap and HashSet are imported from the hashbrown crate.
RcStr is a reference-counted string based on RcSlice.
The localalloc module has fast thread-local bump allocators.
crates.io : https://crates.io/crates/pstd
documentation: https://docs.rs/pstd/latest/pstd/