Issues

• char::EscapeDebug displays a char it's already yielded

  A-fmtA-iteratorsA-strC-bugI-prioritizeregression-from-stable-to-stableT-libs
  rust-lang/rust#165615 · Filter by author Kieran-Hulsman opened on Nov 7, 2026

• Tracking issue for release notes of #164731: core: Stabilize abort_immediate as crash

  A-run-makerelnotesrelnotes-needs-reviewrelnotes-tracking-issueT-langT-libs
  rust-lang/rust#165607 · Filter by author rustbot opened on Nov 7, 2026

• Doc comments are discarded in macro_rules matcher

  A-decl-macros-1-2A-macrosA-parserC-bugT-compilerT-lang
  rust-lang/rust#165605 · Filter by author theemathas opened on Nov 7, 2026

• [ICE]: Tracking borrow behind shared reference.

  C-bugF-reborrowI-ICEneeds-triageT-compiler
  rust-lang/rust#165604 · Filter by author matthiaskrgr opened on Nov 7, 2026

• Impl ConstParamTy_ for NonZero<T>

  needs-triage
  rust-lang/rust#165603 · Filter by author Cheese-Space opened on Nov 7, 2026

• No loop unrolling or vectorization under opt-level=s + #[optimize(size)]

  A-LLVMC-bugF-optimize_attributeI-slowneeds-triage
  rust-lang/rust#165601 · Filter by author hanna-kruppe opened on Nov 7, 2026
  2

• Tracking issue for MCP 1004: Add testing for lint machinery at runtime

  B-MCP-approvedC-tracking-issueS-tracking-unimplementedT-compiler
  rust-lang/rust#165598 · Filter by author rustbot opened on Nov 7, 2026
  1

  

• *-trusty targets build failed

  -Zbuild-stdC-bugO-trustyT-libs
  rust-lang/rust#165596 · Filter by author Wyvern opened on Nov 7, 2026
  2

• Tracking Issue for optimize_speed

  C-tracking-issue
  rust-lang/rust#165590 · Filter by author RalfJung opened on Nov 7, 2026

• [ICE]: Same capture can't be ByUse and ByValue at the same time

  C-bugF-closure_lifetime_binderF-ergonomic_clonesF-move_exprI-ICEneeds-triageT-compiler
  rust-lang/rust#165585 · Filter by author cushionbadak opened on Nov 7, 2026

• [ICE]: no type for local variable

  C-bugF-move_exprI-ICEneeds-triageT-compiler
  rust-lang/rust#165584 · Filter by author cushionbadak opened on Nov 7, 2026

• musl can't pass dynamic-loading-cdylib

  A-linkageA-testsuiteA-thread-localsC-bugO-muslT-libs
  rust-lang/rust#165581 · Filter by author workingjubilee opened on Nov 7, 2026
  3

• aarch64-unknown-teeos build failed

  -Zbuild-stdC-bugO-teeosT-libs
  rust-lang/rust#165560 · Filter by author Wyvern opened on Nov 6, 2026
  3

• Use rust-lld by default on x86_64-pc-windows-gnullvm

  A-linkageA-linkersC-tracking-issueO-windows-gnullvmT-compiler
  rust-lang/rust#165558 · Filter by author rursprung opened on Nov 6, 2026

• Use rust-lld by default on x86_64-pc-windows-gnu

  A-linkageA-linkersC-tracking-issueO-windows-gnuT-compiler
  rust-lang/rust#165557 · Filter by author rursprung opened on Nov 6, 2026

• Use rust-lld by default on aarch64-unknown-gnu-linux

  A-linkageA-linkersC-tracking-issueO-linux-gnuT-compiler
  rust-lang/rust#165555 · Filter by author rursprung opened on Nov 6, 2026
  1

• LLVM ERROR "Cannot select: i64 = sign_extend (v8i32 add ...)" with -C lto=fat and -C target-cpu=x86-64-v4 (regression in 1.99)

  A-LLVMA-LTOC-bugI-llvm-errorI-prioritizeO-x86_64regression-from-stable-to-stableT-compiler
  rust-lang/rust#165551 · Filter by author arielgindi opened on Nov 6, 2026

• Tracking issue for str_split_at_unchecked

  C-tracking-issueS-tracking-unimplementedT-libs
  rust-lang/rust#165545 · Filter by author yhx-12243 opened on Nov 6, 2026

• Miscompile since 1.99: vectorized &= fold returns the wrong value (LLVM 23 find-last reduction, fixed upstream)

  A-LLVMC-bugI-miscompileP-highregression-from-stable-to-stable
  rust-lang/rust#165544 · Filter by author arielgindi opened on Nov 6, 2026
  2

• Tracking issue for release notes of #165037: Drop array elements in order after a partial move

  relnotesrelnotes-needs-reviewrelnotes-tracking-issueT-compiler
  rust-lang/rust#165541 · Filter by author rustbot opened on Nov 6, 2026 · 1.101.0

• [ICE]: cranelift's sanity checks fails on transmute_unchecked with different type sizes on dead path

  A-craneliftC-bugI-ICEneeds-triagerequires-nightlyT-compiler
  rust-lang/rust#165532 · Filter by author frank-king opened on Nov 6, 2026
  1

• Tool attribute/macro ambiguity error does not handle decl macro hygiene correctly

  A-attributesC-bugF-decl_macroF-register_toolT-compiler
  rust-lang/rust#165529 · Filter by author mejrs opened on Nov 5, 2026

• 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
  1

• 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-linkageC-bugI-prioritizeI-unsoundO-muslO-riscvT-compiler
  rust-lang/rust#165520 · Filter by author doloopuntil opened on Nov 5, 2026
  9