Crate features / indexmap
Feature flags · indexmap 2.14.2 · from crates.io 2026-10-24
indexmap features: what each one does, and the line to copy
Short answerindexmap 2.14.2 has 3 features. By default it turns on std; add default-features = false to start from nothing. It needs Rust 1.85 or newer.
Pick features
Every feature
| Feature | In default | Turns on |
|---|---|---|
serde | dep:serde_core, dep:serde | |
std | yes | nothing else (a switch the code checks) |
test_debug | 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 indexmap declares (rust-version), and the release that changed it:
- 1.9.0 (2022-06-17): Rust 1.56.1
- 1.9.1 (2022-06-21): Rust 1.56
- 2.0.0 (2023-06-23): Rust 1.64
- 2.0.1 (2023-09-27): Rust 1.63
- 2.12.0 (2025-10-17): Rust 1.82
- 2.14.0 (2026-04-09): Rust 1.85
Stuck on an older compiler? Pin the last version that supports it, for example cargo update -p indexmap --precise <version>, or use resolver 3, which picks compatible versions for you.
More on indexmap
Real downloads, dependents and alternatives: indexmap crate data (4.9M real downloads a day, 6,422 dependents).
docs.rs feature list · crates.io · license Apache-2.0 OR MIT · edition 2024
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