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github.com / Pretzelhammer Topics: Lifetime misconceptions, sizedness, learning guides Why RustGrep includes it: Common Rust Lifetime Misconceptions is one of the most-shared Rust articles. Categories: educator
Summary Re-organise the library team: • Re-define and rename the categories of membership • Change how team members are selected • Document expectations of team members and maintainers • Define how FCPs are handled by the team Motivation Th...
Summary Change i686-pc-windows-msvc from • Tier 1 target with std support and host tools into only • Tier 1 target with std support, dropping host tools. Motivation Background Rust has, since 1.0, supported almost every architecture for whi...
Summary An extern "custom" fn is a function with a custom ABI that is unknown to Rust. Often these are low-level functions that pass arguments in different registers than any standard calling convention, so using extern "custom" helps rustc...
Summary Add a f16b type to core::num for the 16-bit Brain Floating Point format. Similar to the f32 type, a f16b has a similar layout to the f32, keeping the same 1-bit sign and 8-bit exponent layout but only storing the top 7 fraction bits...
Summary Add support for the de facto standard TeX-math-in-markdown syntax to Rustdoc. It’s currently implemented using the math-core library, which generates MathML Core and is restricted to the subset of LaTeX that can be implemented that...
Summary Allow (optional) named function parameters in parenthesized generic argument lists, such as those of Fn, FnMut, FnOnce, AsyncFn, AsyncFnMut, and AsyncFnOnce. For example: fn parse_my_data( data: &str, log: impl Fn(msg: String, prior...
Summary Someday, we would like to enable people to log in to crates.io with other services in addition to GitHub. This RFC is not yet about adding other services for login. It is proposing that crates.io change to have the concept of a "cra...
Summary Allow disabling default features locally when inheriting a dependency. [workspace] [workspace.dependencies] serde = "1" [package] name = "foo" [dependencies] serde = { workspace = true, default-features = false } Motivation Say you...
Summary Establish the initial round of Rust Project Goals for 2026 along with a set of current roadmaps, which describe multi-year development arcs. New Rust Project Goals may be added over the course of the year but only if all required re...
Summary This RFC defines the relationship between the Rust Foundation Maintainer Fund (RFMF) and the open-source Rust project. The RFMF is a dedicated fund used to support Rust maintenance: open-ended, multiplicative work that improves Rust...
Summary This proposal adds a new configuration option to cargo allowing users to specify a minimum age for dependency versions. When specified, Cargo won't use a version of a registry crate that is newer than the minimum age, with a way to...
Summary Allow Rust library to provide a simple hint about the minimum opt-level to build them with. Motivation When people build Rust projects, they have a choice of tradeoffs between the speed of the build and the performance of the code a...
Summary The todo!() macro is meant as a placeholder, often used to make type check pass while still writing the code. However, since it diverges, all code that comes after it is marked as unreachable. The author proposes changing that to re...
## Summary [summary]: #summary FFI-compatible and calling-convention-compatible complex types are to be introduced into `core` to ensure synchronity with C primitives. ## Motivation [motivation]: #motivation The C standard defines the _memo...
## Summary [summary]: #summary This RFC proposes that crates.io should provide insight into vulnerabilities and unsound API surface based on the RustSec advisory database. ## Motivation [motivation]: #motivation One of the roles that crates...
## Summary [summary]: #summary Propose a slate of 41 goals for 2025H2. ## Motivation The 2025h2 goal slate consists of 41 project goals, of which we have selected a subset as **flagship goals**. Flagship goals represent the highest priority...
# Summary [summary]: #summary Introduce the concept of "mitigation enforcement", so that when compiling a crate with mitigations enabled (for example, `-C stack-protector`), a compilation error will happen if the produced artifact would con...
## Summary [summary]: #summary Demote target `x86_64-apple-darwin` from Tier 1 to Tier 2 with host tools as this platform's lifetime is limited. Tier 2 with host tools means that the `x86_64-apple-darwin` target, including tools like `rustc...
## Summary [summary]: #summary The `const` operand to `asm!` and `global_asm!` currently only accepts integers. Change it to also accept pointer values. The value must be computed during const evaluation. The operand expands to the name of...
"Since it hasn't been said before, there is an important distinction that needs to be addressed. For anyone who has been doing embedded work for any le..."