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Crate features / winnow

Feature flags · winnow 1.0.4 · from crates.io 2026-10-24

winnow features: what each one does, and the line to copy

Short answerwinnow 1.0.4 has 9 features. By default it turns on std, ascii, binary; add default-features = false to start from nothing. It needs Rust 1.65.0 or newer.

Pick features

1.0.4latest version
9features
5optional dependencies
1.65.0MSRV (rust-version)

Every feature

FeatureIn defaultTurns on
allocnothing else (a switch the code checks)
asciiyesparser
binaryyesparser
debugstd, dep:anstream, dep:anstyle, dep:is_terminal_polyfill, dep:terminal_size
parsernothing else (a switch the code checks)
simddep:memchr
stdyesalloc, memchr?/std
unstable-docalloc, std, ascii, binary, simd, unstable-recover
unstable-recoverparser

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 winnow declares (rust-version), and the release that changed it:

  • 0.3.0 (2023-02-22): Rust 1.60.0
  • 0.4.2 (2023-04-28): Rust 1.64.0
  • 0.3.7 (2023-08-17): Rust 1.60.0
  • 0.5.13 (2023-08-17): Rust 1.64.0
  • 0.3.8 (2023-08-17): Rust 1.60.0
  • 0.4.11 (2023-08-17): Rust 1.64.0
  • 0.6.9 (2024-05-28): Rust 1.65.0
  • 0.4.12 (2025-08-21): Rust 1.64.0
  • 0.7.13 (2025-08-22): Rust 1.65.0

Stuck on an older compiler? Pin the last version that supports it, for example cargo update -p winnow --precise <version>, or use resolver 3, which picks compatible versions for you.

More on winnow

Real downloads, dependents and alternatives: winnow crate data (3.6M real downloads a day, 448 dependents).

docs.rs feature list · crates.io · license MIT · edition 2021

Up next

Before you depend on itwinnow crate dataReal downloads, dependents, alternatives.Read it next →

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