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Welcome to the Rust Programming Language Internals Forum
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0
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44267
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June 25, 2014
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Code compiles on playground but fails when passed via stdin to rustc
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37
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1317
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June 30, 2026
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Why is strict_div implemented in terms of overflowing_div for signed integers?
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3
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581
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June 28, 2026
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Should `.into()` disrupt coercion?
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7
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564
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June 27, 2026
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[Pre-RFC] target-glibc: Proposal to add native support for GLIBC versions for the -gnu targets
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17
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912
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June 25, 2026
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Should PGO automatically compile hot code O3 and cold code Oz?
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6
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704
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June 24, 2026
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Compiling rust app with relibc
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1
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270
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June 7, 2026
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Possibility of a "global time source" for wasm targets
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4
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295
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June 3, 2026
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Include racy reads in Rust memory model with `MaybeInvalid<T>`
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49
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1966
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June 2, 2026
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Pre-RFC improved ergonomics for `!`
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19
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1242
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May 27, 2026
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Another Experiment To Make Unsafe Rust Safer: Preventing UB In MaybeUninit With Compile Time Error
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15
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531
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May 24, 2026
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Reducing Raw Pointer Footguns: Preventing Reference Aliasing Violations at Compile Time
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41
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981
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May 21, 2026
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Rustc lexer diagnostics feature request: Color highlight acceptable characters
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2
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353
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May 11, 2026
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More granual `build.rs` companion: `links.rs`
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6
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473
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April 20, 2026
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Change error message of a failing `assert_eq!`
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30
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1519
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April 10, 2026
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[Pre-pre RFC] Allow exclusion of trait methods for (certain) unsatisfiable where bounds
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5
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284
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April 9, 2026
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Q: Why do match expression need parenthesis for ops to the right but not left?
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7
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645
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April 9, 2026
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Why is `RUSTC_BOOTSTRAP` so actively discouraged?
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17
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1113
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April 7, 2026
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The lifecycle of a feature, and where to look for updates
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2
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229
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March 30, 2026
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Compiler should avoid generating very long type name
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10
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903
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March 28, 2026
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Pre-feature request: suppress unused variable warning for unit-type arguments
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16
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567
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March 14, 2026
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Stop including string content in index panics?
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10
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788
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March 13, 2026
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Idea : Lock Free STD Collection
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9
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826
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March 7, 2026
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Should we have set static field for Trait?
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1
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263
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March 6, 2026
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Interior mutability and safety of ownership transfer in Rust
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8
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325
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March 6, 2026
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Pre-RFC: Deprecation and separation of the dead_code lint
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15
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848
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March 4, 2026
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Custom Cargo Command to Show Only Errors (Avoid Setting RustFLAGS Every Time)
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15
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658
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March 3, 2026
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Using pre-2015 Rust
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8
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698
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February 20, 2026
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Looking for use cases of both using keyword `Self` and restricting to select inherent method somehow
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7
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368
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February 10, 2026
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What's the status of feature try_reserve?
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0
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215
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February 7, 2026
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