Compiler panic while building blink.cmp

[rdelfin]

Code

I believe this failure happened while compiling https://github.com/Saghen/blink.cmp

Meta

rustc --version --verbose:

rustc 1.90.0-nightly (3048886e5 2025-07-30)
binary: rustc
commit-hash: 3048886e59c94470e726ecaaf2add7242510ac11
commit-date: 2025-07-30
host: x86_64-unknown-linux-gnu
release: 1.90.0-nightly
LLVM version: 20.1.8

Note the failure only happens when building with --release

Error output

Find the error attached

rustc-ice-2025-07-31T09_25_04-902588.txt

Details

thread 'rustc' panicked at compiler/rustc_mir_transform/src/validate.rs:80:25:
Box<dyn Any>
stack backtrace:
   0:     0x7cfe5f9c5045 - std::backtrace::Backtrace::create::h4dc8ea8dbd9899a1
   1:     0x7cfe5f9c4f95 - std::backtrace::Backtrace::force_capture::h74fa04344d3048dc
   2:     0x7cfe5ea61910 - std[252cdfc11d70884]::panicking::update_hook::<alloc[625f969b2fa307d4]::boxed::Box<rustc_driver_impl[5876898155789fc0]::install_ice_hook::{closure#1}>>::{closure#0}
   3:     0x7cfe5f9df1ae - std::panicking::rust_panic_with_hook::h2abbcd676a345b6f
   4:     0x7cfe5ea9a631 - std[252cdfc11d70884]::panicking::begin_panic::<rustc_errors[a56b846fd2698ae1]::ExplicitBug>::{closure#0}
   5:     0x7cfe5ea8f5c6 - std[252cdfc11d70884]::sys::backtrace::__rust_end_short_backtrace::<std[252cdfc11d70884]::panicking::begin_panic<rustc_errors[a56b846fd2698ae1]::ExplicitBug>::{closure#0}, !>
   6:     0x7cfe5ea8c085 - std[252cdfc11d70884]::panicking::begin_panic::<rustc_errors[a56b846fd2698ae1]::ExplicitBug>
   7:     0x7cfe5eaa4081 - <rustc_errors[a56b846fd2698ae1]::diagnostic::BugAbort as rustc_errors[a56b846fd2698ae1]::diagnostic::EmissionGuarantee>::emit_producing_guarantee
   8:     0x7cfe5f01127c - <rustc_errors[a56b846fd2698ae1]::DiagCtxtHandle>::span_bug::<rustc_span[e212defa68e1f0f]::span_encoding::Span, alloc[625f969b2fa307d4]::string::String>
   9:     0x7cfe5f0a6177 - rustc_middle[5b597aebfad1dd36]::util::bug::opt_span_bug_fmt::<rustc_span[e212defa68e1f0f]::span_encoding::Span>::{closure#0}
  10:     0x7cfe5f08566a - rustc_middle[5b597aebfad1dd36]::ty::context::tls::with_opt::<rustc_middle[5b597aebfad1dd36]::util::bug::opt_span_bug_fmt<rustc_span[e212defa68e1f0f]::span_encoding::Span>::{closure#0}, !>::{closure#0}
  11:     0x7cfe5f0854db - rustc_middle[5b597aebfad1dd36]::ty::context::tls::with_context_opt::<rustc_middle[5b597aebfad1dd36]::ty::context::tls::with_opt<rustc_middle[5b597aebfad1dd36]::util::bug::opt_span_bug_fmt<rustc_span[e212defa68e1f0f]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
  12:     0x7cfe5d055027 - rustc_middle[5b597aebfad1dd36]::util::bug::span_bug_fmt::<rustc_span[e212defa68e1f0f]::span_encoding::Span>
  13:     0x7cfe5d5f5698 - <rustc_mir_transform[57d1aa0078e0a27a]::validate::CfgChecker>::fail::<alloc[625f969b2fa307d4]::string::String>
  14:     0x7cfe614c7d47 - <rustc_mir_transform[57d1aa0078e0a27a]::validate::Validator as rustc_mir_transform[57d1aa0078e0a27a]::pass_manager::MirPass>::run_pass
  15:     0x7cfe60211828 - rustc_mir_transform[57d1aa0078e0a27a]::run_optimization_passes
  16:     0x7cfe60e77f00 - rustc_mir_transform[57d1aa0078e0a27a]::optimized_mir
  17:     0x7cfe60e77ae1 - rustc_query_impl[bc1f4b486f051a3d]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[bc1f4b486f051a3d]::query_impl::optimized_mir::dynamic_query::{closure#2}::{closure#0}, rustc_middle[5b597aebfad1dd36]::query::erase::Erased<[u8; 8usize]>>
  18:     0x7cfe60218525 - rustc_query_system[25bc80909c950048]::query::plumbing::try_execute_query::<rustc_query_impl[bc1f4b486f051a3d]::DynamicConfig<rustc_query_system[25bc80909c950048]::query::caches::DefIdCache<rustc_middle[5b597aebfad1dd36]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[bc1f4b486f051a3d]::plumbing::QueryCtxt, false>
  19:     0x7cfe60217a1b - rustc_query_impl[bc1f4b486f051a3d]::query_impl::optimized_mir::get_query_non_incr::__rust_end_short_backtrace
  20:     0x7cfe5cb2b73b - <rustc_middle[5b597aebfad1dd36]::ty::context::TyCtxt>::instance_mir
  21:     0x7cfe60e8e294 - rustc_mir_transform[57d1aa0078e0a27a]::inline::process_blocks::<rustc_mir_transform[57d1aa0078e0a27a]::inline::NormalInliner>
  22:     0x7cfe60dfa400 - <rustc_mir_transform[57d1aa0078e0a27a]::inline::Inline as rustc_mir_transform[57d1aa0078e0a27a]::pass_manager::MirPass>::run_pass
  23:     0x7cfe60211551 - rustc_mir_transform[57d1aa0078e0a27a]::run_optimization_passes
  24:     0x7cfe60e77f00 - rustc_mir_transform[57d1aa0078e0a27a]::optimized_mir
  25:     0x7cfe60e77ae1 - rustc_query_impl[bc1f4b486f051a3d]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[bc1f4b486f051a3d]::query_impl::optimized_mir::dynamic_query::{closure#2}::{closure#0}, rustc_middle[5b597aebfad1dd36]::query::erase::Erased<[u8; 8usize]>>
  26:     0x7cfe60218525 - rustc_query_system[25bc80909c950048]::query::plumbing::try_execute_query::<rustc_query_impl[bc1f4b486f051a3d]::DynamicConfig<rustc_query_system[25bc80909c950048]::query::caches::DefIdCache<rustc_middle[5b597aebfad1dd36]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[bc1f4b486f051a3d]::plumbing::QueryCtxt, false>
  27:     0x7cfe60217a1b - rustc_query_impl[bc1f4b486f051a3d]::query_impl::optimized_mir::get_query_non_incr::__rust_end_short_backtrace
  28:     0x7cfe60d8514c - <rustc_metadata[15c89b4175c4a52b]::rmeta::encoder::EncodeContext>::encode_crate_root
  29:     0x7cfe617cda30 - <rustc_metadata[15c89b4175c4a52b]::rmeta::encoder::encode_metadata::{closure#3} as core[f23c4ce622767e30]::ops::function::FnOnce<(rustc_middle[5b597aebfad1dd36]::ty::context::TyCtxt, &std[252cdfc11d70884]::path::Path)>>::call_once
  30:     0x7cfe617cac70 - rustc_metadata[15c89b4175c4a52b]::rmeta::encoder::encode_metadata
  31:     0x7cfe610eabd7 - rustc_metadata[15c89b4175c4a52b]::fs::encode_and_write_metadata
  32:     0x7cfe6166c643 - <rustc_interface[46364056eeddd9e7]::queries::Linker>::codegen_and_build_linker
  33:     0x7cfe6166a23c - rustc_interface[46364056eeddd9e7]::passes::create_and_enter_global_ctxt::<core[f23c4ce622767e30]::option::Option<rustc_interface[46364056eeddd9e7]::queries::Linker>, rustc_driver_impl[5876898155789fc0]::run_compiler::{closure#0}::{closure#2}>::{closure#2}::{closure#0}
  34:     0x7cfe61493e71 - rustc_interface[46364056eeddd9e7]::interface::run_compiler::<(), rustc_driver_impl[5876898155789fc0]::run_compiler::{closure#0}>::{closure#1}
  35:     0x7cfe61392a81 - std[252cdfc11d70884]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[46364056eeddd9e7]::util::run_in_thread_with_globals<rustc_interface[46364056eeddd9e7]::util::run_in_thread_pool_with_globals<rustc_interface[46364056eeddd9e7]::interface::run_compiler<(), rustc_driver_impl[5876898155789fc0]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
  36:     0x7cfe61392762 - <<std[252cdfc11d70884]::thread::Builder>::spawn_unchecked_<rustc_interface[46364056eeddd9e7]::util::run_in_thread_with_globals<rustc_interface[46364056eeddd9e7]::util::run_in_thread_pool_with_globals<rustc_interface[46364056eeddd9e7]::interface::run_compiler<(), rustc_driver_impl[5876898155789fc0]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[f23c4ce622767e30]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  37:     0x7cfe61398805 - std::sys::pal::unix::thread::Thread::new::thread_start::h63564cc3addf83a5
  38:     0x7cfe5aa9caa4 - start_thread
                               at ./nptl/pthread_create.c:447:8
  39:     0x7cfe5ab29c3c - clone3
                               at ./misc/../sysdeps/unix/sysv/linux/x86_64/clone3.S:78:0
  40:                0x0 - <unknown>


rustc version: 1.90.0-nightly (3048886e5 2025-07-30)
platform: x86_64-unknown-linux-gnu

query stack during panic:
#0 [optimized_mir] optimizing MIR for `smith_waterman::simd::algorithm::smith_waterman_inner`
#1 [optimized_mir] optimizing MIR for `incremental::bucket::<impl at /home/rdelfin/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/frizbee-0.4.2/src/incremental/bucket.rs:49:1: 55:49>::process`
end of query stack

[bjorn3]

Are there any errors before the backtrace?

[Noratrieb]

also do you have a commit on which this happened to you? I ran cargo build --release in this repo on the latest commit Saghen/blink.cmp@33f0789 and didn't get an ICE.