Crate features / wasi
Feature flags · wasi 0.14.7+wasi-0.2.4 · from crates.io 2026-10-24
wasi features: what each one does, and the line to copy
Short answerwasi 0.14.7+wasi-0.2.4 has 2 features. By default it turns on wasip2/default; add default-features = false to start from nothing. It needs Rust 1.82.0 or newer.
Pick features
Every feature
| Feature | In default | Turns on |
|---|---|---|
bitflags | wasip2/bitflags | |
std | wasip2/std |
dep:x turns on the optional dependency x; x/y turns on feature y of dependency x (with ?, only if x is already on).
MSRV history
The minimum Rust version wasi declares (rust-version), and the release that changed it:
- 0.14.5+wasi-0.2.4 (2025-09-09): Rust 1.82.0
Stuck on an older compiler? Pin the last version that supports it, for example cargo update -p wasi --precise <version>, or use resolver 3, which picks compatible versions for you.
More on wasi
Real downloads, dependents and alternatives: wasi crate data (2.2M real downloads a day, 58 dependents).
docs.rs feature list · crates.io · license Apache-2.0 WITH LLVM-exception OR Apache-2.0 OR MIT · edition 2021
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