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Welcome to the Rust Programming Language Internals Forum
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0
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44688
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June 25, 2014
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Would it make sense for never to implement Iterator?
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21
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643
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November 3, 2026
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Yet Another Performance Footgun in Rust - Multithreading Lock Edition
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42
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715
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November 3, 2026
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Optimising `assert_eq` & `assert_ne`
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5
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307
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November 3, 2026
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Named Arguments are Just Structs: Anonymous Struct Parameters
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38
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1677
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November 3, 2026
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Attempting to clean up the feature activation syntax?
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11
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454
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October 31, 2026
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Check-only Clippy & Fmt for CI/CD
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4
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366
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October 30, 2026
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Clippy wants a Safety section for functions marked with target_feature
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2
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347
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October 30, 2026
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SAFETY comments - nomicon
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3
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261
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October 30, 2026
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Rust is bad in the description, solutions must be explained to the description
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2
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530
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October 29, 2026
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Why `.insert_entry()` is private for `HashSet` and `BTreeSet` Entry APIs?
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3
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380
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October 29, 2026
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Less restrictive mutability rules, again
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47
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1019
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October 28, 2026
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Impl mut and override for incremental, scoped reuse of existing impls
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16
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274
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October 27, 2026
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`read_le` and `read_be` exist but `write_le` and `write_be` don't
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3
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354
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October 26, 2026
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Adding any trait to any type is a breaking change
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5
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432
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October 26, 2026
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Could we get guarantee that all pointer-like types have the same representation?
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19
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1018
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October 25, 2026
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Is this closure_lifetime_binder unsoundness already covered by #25860?
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2
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165
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October 25, 2026
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RFC 3678: Why should final rule out downstream use cases that library authors never anticipated?
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6
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318
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October 24, 2026
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Feature Request: Use Arc in constants
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17
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585
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October 24, 2026
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💡 Proposal: Add `include_c_str!` Macro to Rust
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9
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880
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October 21, 2026
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Cargo / crate statistics on nixpkgs of 2300 rust projects
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2
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335
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October 19, 2026
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Code coverage ignore comments
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2
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227
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October 19, 2026
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Should CommandExt::exec be safe?
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3
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349
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October 18, 2026
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Inline specialization
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4
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507
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October 17, 2026
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Should std have an Arena type?
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21
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1155
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October 15, 2026
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Rust 1.99.1 pre-release testing
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1
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407
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October 13, 2026
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Adding retain_unsorted or similar
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11
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830
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October 13, 2026
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Quick Rust Improvement Ideas — Language & Std (Community Brainstorm)
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84
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2112
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October 7, 2026
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Add a formatting specifier to limit the max length displayed of collections
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5
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502
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October 11, 2026
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VecDeque should expose head via head_index() (or similarly named)
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15
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911
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October 9, 2026
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