Crate features / futures-lite
Feature flags · futures-lite 2.6.1 · from crates.io 2026-10-24
futures-lite features: what each one does, and the line to copy
Short answerfutures-lite 2.6.1 has 3 features. By default it turns on race, std; add default-features = false to start from nothing. It needs Rust 1.60 or newer.
Pick features
Every feature
| Feature | In default | Turns on |
|---|---|---|
alloc | nothing else (a switch the code checks) | |
race | yes | fastrand |
std | yes | alloc, fastrand/std, futures-io, parking |
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 futures-lite declares (rust-version), and the release that changed it:
- 1.13.0 (2023-04-07): Rust 1.40
- 2.0.0 (2023-10-25): Rust 1.61
- 2.2.0 (2024-01-06): Rust 1.60
Stuck on an older compiler? Pin the last version that supports it, for example cargo update -p futures-lite --precise <version>, or use resolver 3, which picks compatible versions for you.
More on futures-lite
Real downloads, dependents and alternatives: futures-lite crate data (763.5K real downloads a day, 1,109 dependents).
docs.rs feature list · crates.io · license Apache-2.0 OR MIT · edition 2021
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