1[](https://crates.io/crates/fallible-iterator) 2[](https://docs.rs/fallible-iterator) 3 4 5 6# rust-fallible-iterator 7 8"Fallible" iterators for Rust. 9 10## Features 11 12If the `std` or `alloc` features are enabled, this crate provides implementations for 13`Box`, `Vec`, `BTreeMap`, and `BTreeSet`. If the `std` feature is enabled, this crate 14additionally provides implementations for `HashMap` and `HashSet`. 15 16If the `std` feature is disabled, this crate does not depend on `libstd`. 17