Crate features / slab
Feature flags · slab 0.4.12 · from crates.io 2026-10-24
slab features: what each one does, and the line to copy
Short answerslab 0.4.12 has 1 feature. By default it turns on std; add default-features = false to start from nothing. It needs Rust 1.51 or newer.
Pick features
Every feature
| Feature | In default | Turns on |
|---|---|---|
std | yes | nothing else (a switch the code checks) |
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 slab declares (rust-version), and the release that changed it:
- 0.4.6 (2022-04-02): Rust 1.31
- 0.4.11 (2025-08-08): Rust 1.51
Stuck on an older compiler? Pin the last version that supports it, for example cargo update -p slab --precise <version>, or use resolver 3, which picks compatible versions for you.
More on slab
Real downloads, dependents and alternatives: slab crate data (3M real downloads a day, 619 dependents).
Security record: slab advisories.
docs.rs feature list · crates.io · license MIT · edition 2018
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