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Issues list

Compiling #[derive(Debug)] enum + dbg! is quadratic with enum variants A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) C-bug Category: This is a bug. I-compiletime Issue: Problems and improvements with respect to compile times. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#133945 opened Dec 6, 2024 by theemathas
1
rustc hangs with gordian knot of trait bounds A-trait-system Area: Trait system C-bug Category: This is a bug. fixed-by-next-solver Fixed by the next-generation trait solver, `-Znext-solver`. I-compiletime Issue: Problems and improvements with respect to compile times. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#133354 opened Nov 23, 2024 by alex
6
Large arrays of enum variants causes polonius to have massive performance issues A-borrow-checker Area: The borrow checker C-bug Category: This is a bug. I-compiletime Issue: Problems and improvements with respect to compile times. NLL-polonius Issues related for using Polonius in the borrow checker requires-nightly This issue requires a nightly compiler in some way. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-types Relevant to the types team, which will review and decide on the PR/issue.
#133054 opened Nov 14, 2024 by lilyyy411
2
Exponential time complexity for parser combinator with RPITIT C-bug Category: This is a bug. E-needs-mcve Call for participation: This issue has a repro, but needs a Minimal Complete and Verifiable Example F-return_position_impl_trait_in_trait `#![feature(return_position_impl_trait_in_trait)]` I-compiletime Issue: Problems and improvements with respect to compile times. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#132991 opened Nov 13, 2024 by DaniPopes
Rustdoc: Very long doc compile times (95%+ taken by render_html) I-compiletime Issue: Problems and improvements with respect to compile times. S-needs-repro Status: This issue has no reproduction and needs a reproduction to make progress. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue.
#132775 opened Nov 8, 2024 by JustusFluegel
4
regression: crate compiles much slower with 1.82 C-bug Category: This is a bug. I-compiletime Issue: Problems and improvements with respect to compile times. regression-from-stable-to-stable Performance or correctness regression from one stable version to another. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#132064 opened Oct 23, 2024 by Nutomic
2
12
Compiling cranelift-codegen with -Z next-solver is very slow C-bug Category: This is a bug. I-compiletime Issue: Problems and improvements with respect to compile times. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-types Relevant to the types team, which will review and decide on the PR/issue. WG-trait-system-refactor The Rustc Trait System Refactor Initiative (-Znext-solver)
#131411 opened Oct 8, 2024 by narpfel
Compile time regression with the new trait solver and diesel C-bug Category: This is a bug. I-compiletime Issue: Problems and improvements with respect to compile times. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-types Relevant to the types team, which will review and decide on the PR/issue. WG-trait-system-refactor The Rustc Trait System Refactor Initiative (-Znext-solver)
#131231 opened Oct 4, 2024 by weiznich
5
rustc consumes > 50GB memory, completes eventually but def. stuck on something A-type-system Area: Type system E-needs-mcve Call for participation: This issue has a repro, but needs a Minimal Complete and Verifiable Example I-compilemem Issue: Problems and improvements with respect to memory usage during compilation. I-compiletime Issue: Problems and improvements with respect to compile times. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-types Relevant to the types team, which will review and decide on the PR/issue.
#129844 opened Sep 1, 2024 by GlenDC
5
Too long compile time with implementing a trait function A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-bug Category: This is a bug. I-compiletime Issue: Problems and improvements with respect to compile times. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#129776 opened Aug 30, 2024 by dalance
@DianQK
4
Very long compilation time on Apple Silicon platform A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. I-compiletime Issue: Problems and improvements with respect to compile times. O-AArch64 Armv8-A or later processors in AArch64 mode O-macos Operating system: macOS
#129713 opened Aug 28, 2024 by kika
100% CPU usage when running doc tests A-doctests Area: Documentation tests, run by rustdoc C-bug Category: This is a bug. I-compiletime Issue: Problems and improvements with respect to compile times. perf-regression Performance regression. regression-untriaged Untriaged performance or correctness regression. S-needs-repro Status: This issue has no reproduction and needs a reproduction to make progress. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue.
#128538 opened Aug 2, 2024 by tingerrr
17
Very bad performance of cargo check on generic code A-trait-system Area: Trait system C-bug Category: This is a bug. I-compiletime Issue: Problems and improvements with respect to compile times. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-types Relevant to the types team, which will review and decide on the PR/issue.
#125994 opened Jun 4, 2024 by maia-s
5
Exponential time complexity when type checking code with equality constraints A-type-system Area: Type system C-optimization Category: An issue highlighting optimization opportunities or PRs implementing such I-compiletime Issue: Problems and improvements with respect to compile times. S-has-mcve Status: A Minimal Complete and Verifiable Example has been found for this issue T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-types Relevant to the types team, which will review and decide on the PR/issue.
#125267 opened May 19, 2024 by jhpratt
1
Ludicrous build time for keshvar crate in release mode A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-optimization Category: An issue highlighting optimization opportunities or PRs implementing such I-compiletime Issue: Problems and improvements with respect to compile times. S-has-mcve Status: A Minimal Complete and Verifiable Example has been found for this issue T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#124653 opened May 3, 2024 by virtualritz
@DianQK
7
Very slow 80 minutes release build, due mir_pass_scalar_replacement_of_aggregates (sroa) optimization enabled A-mir-opt Area: MIR optimizations C-bug Category: This is a bug. I-compiletime Issue: Problems and improvements with respect to compile times. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#121354 opened Feb 20, 2024 by qarmin
1
cargo check is > O(n) per number of unchanged files C-bug Category: This is a bug. I-compiletime Issue: Problems and improvements with respect to compile times. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#120647 opened Feb 4, 2024 by ct-ln
5
Compile is too slow A-type-system Area: Type system C-bug Category: This is a bug. E-needs-mcve Call for participation: This issue has a repro, but needs a Minimal Complete and Verifiable Example I-compiletime Issue: Problems and improvements with respect to compile times. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-types Relevant to the types team, which will review and decide on the PR/issue.
#119736 opened Jan 8, 2024 by araraloren
4
exponential compile times for simple function compositions C-enhancement Category: An issue proposing an enhancement or a PR with one. I-compiletime Issue: Problems and improvements with respect to compile times. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-types Relevant to the types team, which will review and decide on the PR/issue.
#119503 opened Jan 1, 2024 by aliemjay
Compilation unterminated when type variable is a huge array C-bug Category: This is a bug. F-transmutability `#![feature(transmutability)]` I-compiletime Issue: Problems and improvements with respect to compile times.
#118860 opened Dec 12, 2023 by thomasyonug
3
Compiler hang with recursive trait requirement and default impl A-specialization Area: Trait impl specialization C-bug Category: This is a bug. F-specialization `#![feature(specialization)]` I-compiletime Issue: Problems and improvements with respect to compile times. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#117909 opened Nov 14, 2023 by jruderman
2
Exponential compile time with nested closures and missing binop C-bug Category: This is a bug. I-compiletime Issue: Problems and improvements with respect to compile times. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#117798 opened Nov 10, 2023 by jruderman
Much higher compile times with -Z threads=8 than with -Z threads=1 A-parallel-queries Area: Parallel query execution C-bug Category: This is a bug. I-compiletime Issue: Problems and improvements with respect to compile times. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. WG-compiler-parallel Working group: Parallelizing the compiler
#117755 opened Nov 9, 2023 by Shnatsel
13
Exponential compile time with invalid use of modifying-assignment operators C-bug Category: This is a bug. I-compiletime Issue: Problems and improvements with respect to compile times. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#117690 opened Nov 7, 2023 by jruderman
1
Exponential compile time with nested &dyn Fn type and lifetime C-bug Category: This is a bug. I-compiletime Issue: Problems and improvements with respect to compile times. T-types Relevant to the types team, which will review and decide on the PR/issue.
#117624 opened Nov 6, 2023 by jruderman
2
ProTip! Exclude everything labeled bug with -label:bug.