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Find the best content on Rust, curated by the community; a search engine for Rustaceans.
rust-lang.github.io
futures-core
The core traits and types in for the `futures` library.
Crate v0.3.34 2026-08-11
rust-lang.github.io
futures-util
Common utilities and extension traits for the futures-rs library.
Crate v0.3.34 2026-08-11
rust-lang.github.io
futures-task
Tools for working with tasks.
Crate v0.3.34 2026-08-11
rust-lang.github.io
futures-sink
The asynchronous `Sink` trait for the futures-rs library.
Crate v0.3.34 2026-08-11
rust-lang.github.io
futures-channel
Channels for asynchronous communication using futures-rs.
Crate v0.3.34 2026-08-11
rust-lang.github.io
futures-io
The `AsyncRead`, `AsyncWrite`, `AsyncSeek`, and `AsyncBufRead` traits for the futures-rs library.
Crate v0.3.34 2026-08-11
rust-lang.github.io
futures
An implementation of futures and streams featuring zero allocations, composability, and iterator-like interfaces.
Crate v0.3.34 2026-08-11
rust-lang.github.io
futures-macro
The futures-rs procedural macro implementations.
Crate v0.3.34 2026-08-11
rust-lang.github.io
futures-executor
Executors for asynchronous tasks based on the futures-rs library.
Crate v0.3.34 2026-08-11
rust-lang.github.io
futures-test
Common utilities for testing components built off futures-rs.
Crate v0.3.34 2026-08-11
rust-lang.github.io
mdbook
Creates a book from markdown files
Crate v0.5.4 2026-07-06
rust-lang.github.io
#3923
Feature Name: cargo_min_publish_age Start Date: 2026-02-23 RFC PR: rust-lang/rfcs#3923 Tracking Issue: rust-lang/cargo#17009 Summary This proposal adds a new configuration option to cargo allowing users to specify a minimum age for dependen...
Cargo 2026-06-24 ~17 min read
rust-lang.github.io
#3631
Rustdoc: stabilization of the doc(cfg*) attributes Features Name: doc_cfg Start Date: 2022-12-07 RFC PR: rust-lang/rfcs#3631 Rust Issue: rust-lang/rust#43781 Summary This RFC aims at providing rustdoc users the possibility to add visual mar...
Rustdoc 2025-10-01 ~9 min read
rust-lang.github.io
#3698
Feature Name: macro_derive Start Date: 2024-09-20 RFC PR: rust-lang/rfcs#3698 Rust Issue: rust-lang/rust#143549 Summary Support implementing derive(Trait) via a macro_rules! macro. Motivation Many crates support deriving their traits with d...
Compiler 2025-08-20 ~9 min read
rust-lang.github.io
#3697
Feature Name: macro_attr Start Date: 2024-09-20 RFC PR: rust-lang/rfcs#3697 Rust Issue: rust-lang/rust#143547 Summary Support defining macro_rules! macros that work as attribute macros. Motivation Many crates provide attribute macros. Today...
Compiler 2025-08-13 ~7 min read
rust-lang.github.io
#3624
Feature Name: supertrait_item_shadowing Start Date: 2024-05-04 RFC PR: rust-lang/rfcs#3624 Tracking Issue: rust-lang/rust#89151 Summary When method selection encounters an ambiguity between two trait methods when both traits are in scope, i...
Updates from the Rust Project 2025-02-19 ~4 min read
rust-lang.github.io
#3668
Feature Name: async_closure1 2 Start Date: 2024-06-25 RFC PR: rust-lang/rfcs#3668 Tracking Issue: rust-lang/rust#62290 Summary This RFC adds an async bound modifier to the Fn family of trait bounds. The combination currently desugars to a s...
Updates from the Rust Project 2024-12-18 ~26 min read
rust-lang.github.io
#3593
Feature Name: unprefixed_guarded_strings Start Date: 2024-03-24 RFC PR: rust-lang/rfcs#3593 Tracking Issue: rust-lang/rust#123735 Summary Beginning with the 2024 edition, reserve the syntax #"foo"#, as a way of future-proofing against futur...
Updates from the Rust Project 2024-10-16 ~3 min read
rust-lang.github.io
#3695
Feature Name: cfg_boolean_literals Start Date: 2024-09-16 RFC PR: rust-lang/rfcs#3695 Tracking Issue: rust-lang/rust#131204 Summary Allow true and false boolean literals as cfg predicates, i.e. cfg(true)/cfg(false). Motivation Often, we may...
Updates from the Rust Project 2024-10-09 ~2 min read
rust-lang.github.io
#3550
Feature Name: new_range Start Date: 2023-12-18 RFC PR: rust-lang/rfcs#3550 Tracking Issue: rust-lang/rust#123741 Summary Change the range operators a..b, a.., and a..=b to resolve to new types std::range::Range, std::range::RangeFrom, and s...
Updates from the Rust Project 2024-07-10 ~16 min read
"Clippy is for those of you who have become desensitized to the constant whining of the Rust compiler and need a higher dosage of whininess to be kept ..."
— Manishearth in a blog post.

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