Issues

• std missing is_console function for all *-win7-* targets

  needs-triage
  rust-lang/rust#164340 · Filter by author Wyvern opened on Oct 15, 2026

• cargotest: xsv test fails to compile on riscv64 due to outdated libc

  C-bugneeds-triage
  rust-lang/rust#164339 · Filter by author yuzibo opened on Oct 15, 2026
  1

• Reborrow unsoundness: calling through a closure allows two live exclusive reborrows

  A-borrow-checkerA-closuresC-bugF-reborrowI-unsoundT-types
  rust-lang/rust#164338 · Filter by author leeewee opened on Oct 15, 2026
  3

• Polonius (nightly default) loses the borrow captured by an impl Trait return value when the callee has a projection-typed parameter and is called through a closure

  A-associated-itemsA-borrow-checkerA-closuresA-impl-traitC-bugI-prioritizeI-unsoundNLL-poloniusregression-from-stable-to-nightlyT-types
  rust-lang/rust#164337 · Filter by author leeewee opened on Oct 15, 2026

• Miscompilation on i686 at -C opt-level=1 with debug assertions (SIGILL)

  A-LLVMC-bugE-needs-bisectionI-miscompileI-prioritizeO-x86_32T-compiler
  rust-lang/rust#164336 · Filter by author zxt5 opened on Oct 14, 2026

• 1.99 regression: u128 code with opt-level=3 + debuginfo=2 + overflow checks consumes ~inf memory

  A-LLVMC-bugI-hangI-prioritizeregression-from-stable-to-stable
  rust-lang/rust#164326 · Filter by author randombit opened on Oct 14, 2026
  2

• Tracking issue for release notes of #159374: Lower #[no_mangle] to #[symbol_name]/#[link_name]

  A-attributesrelnotesrelnotes-needs-reviewrelnotes-tracking-issueT-compiler
  rust-lang/rust#164323 · Filter by author rustbot opened on Oct 14, 2026

• rustc caught SIGSEGV and gave a pretty stacktrace

  A-LLVMC-bugI-crashI-llvm-errorS-needs-repro
  rust-lang/rust#164321 · Filter by author Spindel opened on Oct 14, 2026
  2

• Methods with arbitrary self types should be duplicated across libstd docs

  A-boxA-docsC-enhancementF-arbitrary_self_typesT-libsT-rustdoc
  rust-lang/rust#164320 · Filter by author clarfonthey opened on Oct 14, 2026
  2

• ICE on const fn param of type ... (C-variadics)

  C-bugF-function_arg_const_genericsI-ICET-compiler
  rust-lang/rust#164319 · Filter by author fmease opened on Oct 14, 2026
  2

  

• Incorrect span on unsatisfied higher ranked bound

  A-diagnosticsA-higher-rankedD-imprecise-spansT-compiler
  rust-lang/rust#164312 · Filter by author maxdexh opened on Oct 14, 2026
  1

  

• libdisplaydoc.so function misaligns stack

  C-bugI-miscompileI-prioritizeneeds-triageO-hurdO-x86_32T-compiler
  rust-lang/rust#164311 · Filter by author sthibaul opened on Oct 14, 2026
  2

• Unsoundness with min_specialization and non-WF HRTB

  A-destructorsA-higher-rankedC-bugF-min_specializationI-unsoundT-types
  rust-lang/rust#164306 · Filter by author theemathas opened on Oct 14, 2026

• Compiler hangs at -C opt-level=3 with -C target-cpu=x86-64-v3

  A-LLVMI-hangneeds-triageT-compiler
  rust-lang/rust#164299 · Filter by author zxt5 opened on Oct 14, 2026

• Crash on an i128 accumulation loop at -C opt-level=3 with AVX2

  A-LLVMC-bugI-miscompileI-prioritizellvm-fixed-upstreamT-compiler
  rust-lang/rust#164298 · Filter by author zxt5 opened on Oct 14, 2026
  1

• Miscompilation with -C lto=fat: impossible "index out of bounds: the len is 8 but the index is 0"

  A-LLVMA-LTOC-bugI-miscompileI-prioritizeT-compiler
  rust-lang/rust#164297 · Filter by author zxt5 opened on Oct 14, 2026
  2

• Miscompilation: loop counter off by one after a vectorized loop at -O

  A-LLVMC-bugE-needs-bisectionI-miscompileI-prioritizeneeds-triageT-compiler
  rust-lang/rust#164295 · Filter by author zxt5 opened on Oct 14, 2026

• rustdoc: redundant_explicit_links is reported with no location when a module has /// docs in the parent file and //! docs in its own file

  A-diagnosticsA-lintsC-bugT-rustdoc
  rust-lang/rust#164282 · Filter by author pcshrosbree opened on Oct 13, 2026

• 1.98 Build speed regression - GNU ld on arm

  C-bugE-needs-mcveI-prioritizeneeds-triageO-Armregression-untriaged
  rust-lang/rust#164275 · Filter by author rarick opened on Oct 13, 2026
  5

• binary with panic="immediate-abort" still links in __rustc::rust_begin_unwind() which stores garbage

  A-linkageC-discussion
  rust-lang/rust#164274 · Filter by author mauntiii opened on Oct 13, 2026
  3

• process::exit() + thread-locals can deadlock due to unique_thread_exit()

  C-bugneeds-triageT-libs
  rust-lang/rust#164273 · Filter by author jsnell opened on Oct 13, 2026
  4

• Missing optimisation opportunity for async function unused variable is copied.

  A-async-awaitC-optimizationE-needs-mcveF-impl_trait_in_assoc_typeI-slowneeds-triage
  rust-lang/rust#164270 · Filter by author ValouBambou opened on Oct 13, 2026
  4

• Non-valid LLVM IR generated with -Z virtual-function-elimination

  A-codegenA-LLVMC-bugI-llvm-errorrequires-nightly
  rust-lang/rust#164267 · Filter by author vonavi opened on Oct 13, 2026
  1

  

• Weird overlapping spans for "hidden type for captures lifetime" diagnostic (E0700)

  A-diagnosticsD-imprecise-spansD-non-disjoint-spansD-papercutT-compiler
  rust-lang/rust#164265 · Filter by author maxdexh opened on Oct 13, 2026

• *-kmc-solid_*: std's sockaddr_storage too small for sockaddr_in6

  C-bugneeds-triage
  rust-lang/rust#164251 · Filter by author portlandhodl opened on Oct 13, 2026
  2