Issues

• Miscompilation at opt-level=2 since the LLVM 23 upgrade (DFAJumpThreading)

  A-LLVMI-miscompileI-prioritizeregression-from-stable-to-stableT-compiler
  rust-lang/rust#165528 · Filter by author trevp opened on Nov 5, 2026

• Tracking issue for release notes of #162504: Stabilize unsafe_cell_access

  relnotesrelnotes-needs-reviewrelnotes-tracking-issueT-compilerT-libs
  rust-lang/rust#165521 · Filter by author rustbot opened on Nov 5, 2026 · 1.100.0

• riscv64gc-unknown-linux-musl: self-contained musl 1.2.5 starts threads with a misaligned stack (missing musl commit 5e03c03f)

  A-codegenA-LLVMC-bugI-miscompileI-prioritizeI-unsoundO-muslO-riscvT-compiler
  rust-lang/rust#165520 · Filter by author doloopuntil opened on Nov 5, 2026

• [ICE]: do not use optimized_mir for constants: Const { allow_const_fn_promotion: false }

  A-const-evalA-MIRC-bugI-ICET-clippyT-compiler
  rust-lang/rust#165515 · Filter by author CharaVerKys opened on Nov 5, 2026

• SIGILL when compiling yubico authenticator-helper with LTO

  A-LLVMA-LTOC-bugI-crashS-needs-infoT-compiler
  rust-lang/rust#165511 · Filter by author drac-dot-gay opened on Nov 5, 2026
  1

• Tracking issue for release notes of #164716: Lower UEFI targets through LLVM's *uefi triple

  A-LLVMO-ArmO-UEFIO-x86_64relnotesrelnotes-needs-reviewrelnotes-tracking-issueT-compiler
  rust-lang/rust#165504 · Filter by author rustbot opened on Nov 5, 2026 · 1.101.0
  1

• Either reject compiletest directives (//@) in minicore.rs or support them

  A-compiletestA-test-infra-minicoreC-enhancementE-needs-designP-lowT-compiler
  rust-lang/rust#165479 · Filter by author fmease opened on Nov 5, 2026
  11

  

• bootstrap: cross-built rustc dist includes proc-macros in lib/

  A-crossC-bugT-bootstrap
  rust-lang/rust#165478 · Filter by author cuviper opened on Nov 4, 2026

• Tracking issue for release notes of #164653: Deprecate internal function vec::from_elem

  relnotesrelnotes-needs-reviewrelnotes-tracking-issueT-libs
  rust-lang/rust#165477 · Filter by author rustbot opened on Nov 4, 2026 · 1.101.0

• Pseudo-Tracking Issue for compiler_builtins

  C-tracking-issueT-compiler
  rust-lang/rust#165476 · Filter by author RalfJung opened on Nov 4, 2026
  7

• Regression: Removing the sealing supertrait of SliceIndex was a breaking change (despite impl(self))

  A-coherenceA-crate-compatA-slice-vecC-bugI-prioritizeregression-from-stable-to-stableS-has-bisectionT-langT-libsT-types
  rust-lang/rust#165474 · Filter by author Thomas-Mewily opened on Nov 4, 2026
  26

• [ICE]: assertion failed: !deep_decl.is_glob_import() with glob imports and macro-expanded use (regression in 1.98.0)

  C-bugI-ICEneeds-triageT-compiler
  rust-lang/rust#165473 · Filter by author Amberley-Sz opened on Nov 4, 2026
  

• [ICE]: left: Trait =! right: DefKind::Impl { of_trait: false }

  C-bugF-gca_min_const_itemsI-ICEneeds-triagerequires-debug-assertionsT-compiler
  rust-lang/rust#165471 · Filter by author matthiaskrgr opened on Nov 4, 2026
  2

• [ICE]: -Zautodiff=Enable aborts in Enzyme TypeTree::insert ("illegal insertion") on a by-value array of (&str, f64), in a crate with no autodiff code

  C-bugF-autodiffI-ICEneeds-triageT-compiler
  rust-lang/rust#165470 · Filter by author indrayudhistira opened on Nov 4, 2026
  2

• -Zcrate-attr consider injected #![ and ] relevant for spans

  -Zcrate-attrC-bugT-compiler
  rust-lang/rust#165450 · Filter by author Urgau opened on Nov 4, 2026
  1

• Tracking Issue for discriminant_ord

  C-tracking-issueS-tracking-unimplementedT-libs
  rust-lang/rust#165438 · Filter by author bushrat011899 opened on Nov 3, 2026
  

• [ICE]: entered unreachable code in rustc_data_structures/src/vec_cache.rs:327:25

  A-incr-compC-bugI-ICEneeds-triageT-compiler
  rust-lang/rust#165435 · Filter by author hawkw opened on Nov 3, 2026
  1

• Tracking issue for release notes of #164258: clarify when Vec::into_boxed_slice() is in-place

  relnotesrelnotes-needs-reviewrelnotes-tracking-issueT-libs
  rust-lang/rust#165433 · Filter by author rustbot opened on Nov 3, 2026 · 1.101.0

• Tracking Issue for type-smart intersect on ranges

  C-tracking-issueS-tracking-unimplementedT-libs
  rust-lang/rust#165428 · Filter by author scottmcm opened on Nov 3, 2026

• Tracking Issue for btf_type_tag and btf_decl_tag

  A-debuginfoC-tracking-issueS-tracking-unimplementedT-compiler
  rust-lang/rust#165422 · Filter by author yonghong-song opened on Nov 3, 2026
  1

• Tracking issue for release notes of #153261: Partially stabilize ptr_alignment_type as alignment_type

  relnotesrelnotes-needs-reviewrelnotes-tracking-issueT-libs
  rust-lang/rust#165415 · Filter by author rustbot opened on Nov 3, 2026

• Strangly [E0275]: overflow evaluating the requirement

  A-diagnosticsT-compilerT-typesWG-trait-system-refactor
  rust-lang/rust#165413 · Filter by author A4-Tacks opened on Nov 3, 2026
  1

• Calls in compiler_builtins can be silently replaced by abort()

  A-compiler-builtinsA-linkageA-linkersA-MIRA-uninhabited-typesT-compilerT-opsem
  rust-lang/rust#165399 · Filter by author RalfJung opened on Nov 3, 2026
  24

• Bad suggestion when calling method of non-imported trait: suggests different method on the same trait

  A-diagnosticsT-compiler
  rust-lang/rust#165389 · Filter by author RalfJung opened on Nov 3, 2026
  1

• missing comma in function arguments with closure leads to wrong name resolution errors

  A-diagnosticsT-compiler
  rust-lang/rust#165386 · Filter by author inkreasing opened on Nov 3, 2026
  2