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base-db crate failed to build when bootstrapping Rust #796

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base-db crate failed to build when bootstrapping Rust#796
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@thesamesam
thesamesam
opened on Nov 3, 2025

I was working on my dist patch and tried to setup a development environment outside of packaging.

bootstrap.toml:

# See bootstrap.example.toml for documentation of available options
#
profile = "dist"  # Includes one of the default files in src/bootstrap/defaults
change-id = 147888

#[build]
#full-bootstrap = true
#jobs = 2

[rust]
codegen-backends = ["gcc"]
deny-warnings = false
debug-assertions = false

[gcc]
download-ci-gcc = true

My checkout of rust was at f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b with my WIP dist patch (which shouldn't affect codegen at all) and the OOM fix on top, see https://github.com/thesamesam/rust/tree/9b1c90709dd411b517d7db9ac1b998a4ff398e71.

I ran ./x.py build and some time into the build, it failed:

   Compiling base-db v0.0.0 (/home/sam/git/rust/src/tools/rust-analyzer/crates/base-db)
   Compiling mbe v0.0.0 (/home/sam/git/rust/src/tools/rust-analyzer/crates/mbe)
   Compiling hir-expand v0.0.0 (/home/sam/git/rust/src/tools/rust-analyzer/crates/hir-expand)

thread 'rustc' (2687346) panicked at compiler/rustc_codegen_gcc/src/builder.rs:1531:13:                                                                                                   Unexpected type __int8_t *                                                                                                                                                               
stack backtrace:                                                                                                                                                                            
 0:     0x7f0584020322 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h47627beda0767f4c
1:     0x7f0584050a4f - core::fmt::write::h8a63064c67176fd8
2:     0x7f0583fd17f3 - std::io::Write::write_fmt::h5e9b646cef91150b
 3:     0x7f0583fe6ff2 - std::sys::backtrace::BacktraceLock::print::h4634d27c0afbaebb
4:     0x7f0583fef3aa - std::panicking::default_hook::{{closure}}::h23e0299d4738b766
 5:     0x7f0583fef204 - std::panicking::default_hook::hfeec6294e8751b62
         6:     0x7f05806bc9f6 - std[e20d0b87aa1ec278]::panicking::update_hook::<alloc[d35db71d034d3387]::boxed::Box<rustc_driver_impl[a08ff5e51d219c2a]::install_ice_hook::{closure#1}>>::{closure#0}
7:     0x7f0583fefa5f - std::panicking::panic_with_hook::hd57cd463d793ed79
8:     0x7f0583fef80a - std::panicking::panic_handler::{{closure}}::hddd6216c3fddee3b                                                                                                     9:     0x7f0583fe7129 - std::sys::backtrace::__rust_end_short_backtrace::h5e7a56f283378525
 10:     0x7f0583fc32ed - __rustc[256c90bb7e548b45]::rust_begin_unwind
            11:     0x7f0584060a50 - core::panicking::panic_fmt::hf19c198748ef6a95
           12:     0x7f057dce4d48 - <rustc_codegen_gcc[14cfcaa53a631e47]::builder::Builder as rustc_codegen_ssa[9311ecf3104fcde6]::traits::builder::BuilderMethods>::extract_value
13:     0x7f057dc2a0db - <rustc_codegen_ssa[9311ecf3104fcde6]::mir::FunctionCx<rustc_codegen_gcc[14cfcaa53a631e47]::builder::Builder>>::store_return                                      
14:     0x7f057dc7e7fe - <rustc_codegen_ssa[9311ecf3104fcde6]::mir::block::TerminatorCodegenHelper>::do_call::<rustc_codegen_gcc[14cfcaa53a631e47]::builder::Builder>                     
15:     0x7f057dc3006b - <rustc_codegen_ssa[9311ecf3104fcde6]::mir::FunctionCx<rustc_codegen_gcc[14cfcaa53a631e47]::builder::Builder>>::codegen_call_terminator                           
16:     0x7f057dc2b17a - <rustc_codegen_ssa[9311ecf3104fcde6]::mir::FunctionCx<rustc_codegen_gcc[14cfcaa53a631e47]::builder::Builder>>::codegen_block                                     
17:     0x7f057dc1da53 - rustc_codegen_ssa[9311ecf3104fcde6]::mir::codegen_mir::<rustc_codegen_gcc[14cfcaa53a631e47]::builder::Builder>                                                   18:     0x7f057dc904e1 - rustc_codegen_ssa[9311ecf3104fcde6]::base::codegen_instance::<rustc_codegen_gcc[14cfcaa53a631e47]::builder::Builder>                                             
19:     0x7f057dc86f29 - <rustc_middle[7cfc6eadeeeb72d5]::mir::mono::MonoItem as rustc_codegen_ssa[9311ecf3104fcde6]::mono_item::MonoItemExt>::define::<rustc_codegen_gcc[14cfcaa53a631e47]::builder::Builder>                                                                                                                                                                      
20:     0x7f057dc00e25 - rustc_codegen_gcc[14cfcaa53a631e47]::base::compile_codegen_unit::module_codegen                                                                                  21:     0x7f057dbf9524 - rustc_codegen_gcc[14cfcaa53a631e47]::base::compile_codegen_unit                                                                                                  22:     0x7f057dc8f93b - rustc_codegen_ssa[9311ecf3104fcde6]::base::codegen_crate::<rustc_codegen_gcc[14cfcaa53a631e47]::GccCodegenBackend>
  23:     0x7f057dc611dc - <rustc_codegen_gcc[14cfcaa53a631e47]::GccCodegenBackend as rustc_codegen_ssa[9311ecf3104fcde6]::traits::backend::CodegenBackend>::codegen_crate
  24:     0x7f0580934cee - <rustc_session[f994edabbc433fc4]::session::Session>::time::<alloc[d35db71d034d3387]::boxed::Box<dyn core[5b293a957d0a6e5f]::any::Any>, rustc_interface[dcf0e0a8
a73c9394]::passes::start_codegen::{closure#0}>
  25:     0x7f05809743d8 - rustc_interface[dcf0e0a8a73c9394]::passes::start_codegen
  26:     0x7f058094851a - <rustc_interface[dcf0e0a8a73c9394]::queries::Linker>::codegen_and_build_linker
  27:     0x7f05806d362c - <std[e20d0b87aa1ec278]::thread::local::LocalKey<core[5b293a957d0a6e5f]::cell::Cell<*const ()>>>::with::<rustc_middle[7cfc6eadeeeb72d5]::ty::context::tls::enter
_context<<rustc_middle[7cfc6eadeeeb72d5]::ty::context::GlobalCtxt>::enter<rustc_interface[dcf0e0a8a73c9394]::passes::create_and_enter_global_ctxt<core[5b293a957d0a6e5f]::option::Option<r
ustc_interface[dcf0e0a8a73c9394]::queries::Linker>, rustc_driver_impl[a08ff5e51d219c2a]::run_compiler::{closure#0}::{closure#2}>::{closure#2}::{closure#0}, core[5b293a957d0a6e5f]::option
::Option<rustc_interface[dcf0e0a8a73c9394]::queries::Linker>>::{closure#1}, core[5b293a957d0a6e5f]::option::Option<rustc_interface[dcf0e0a8a73c9394]::queries::Linker>>::{closure#0}, core
[5b293a957d0a6e5f]::option::Option<rustc_interface[dcf0e0a8a73c9394]::queries::Linker>>
  28:     0x7f058068328b - <rustc_middle[7cfc6eadeeeb72d5]::ty::context::TyCtxt>::create_global_ctxt::<core[5b293a957d0a6e5f]::option::Option<rustc_interface[dcf0e0a8a73c9394]::queries::Linker>, rustc_interface[dcf0e0a8a73c9394]::passes::create_and_enter_global_ctxt<core[5b293a957d0a6e5f]::option::Option<rustc_interface[dcf0e0a8a73c9394]::queries::Linker>, rustc_driver_
impl[a08ff5e51d219c2a]::run_compiler::{closure#0}::{closure#2}>::{closure#2}::{closure#0}>
  29:     0x7f05806594e0 - <rustc_interface[dcf0e0a8a73c9394]::passes::create_and_enter_global_ctxt<core[5b293a957d0a6e5f]::option::Option<rustc_interface[dcf0e0a8a73c9394]::queries::Lin
ker>, rustc_driver_impl[a08ff5e51d219c2a]::run_compiler::{closure#0}::{closure#2}>::{closure#2} as core[5b293a957d0a6e5f]::ops::function::FnOnce<(&rustc_session[f994edabbc433fc4]::sessio
n::Session, rustc_middle[7cfc6eadeeeb72d5]::ty::context::CurrentGcx, alloc[d35db71d034d3387]::sync::Arc<rustc_data_structures[ab2ce16cad8618aa]::jobserver::Proxy>, &std[e20d0b87aa1ec278]
::sync::once_lock::OnceLock<rustc_middle[7cfc6eadeeeb72d5]::ty::context::GlobalCtxt>, &rustc_data_structures[ab2ce16cad8618aa]::sync::worker_local::WorkerLocal<rustc_middle[7cfc6eadeeeb7
2d5]::arena::Arena>, &rustc_data_structures[ab2ce16cad8618aa]::sync::worker_local::WorkerLocal<rustc_hir[24a6abdd5fd8257e]::Arena>, rustc_driver_impl[a08ff5e51d219c2a]::run_compiler::{cl
osure#0}::{closure#2})>>::call_once::{shim:vtable#0}
  30:     0x7f05806580b9 - rustc_interface[dcf0e0a8a73c9394]::passes::create_and_enter_global_ctxt::<core[5b293a957d0a6e5f]::option::Option<rustc_interface[dcf0e0a8a73c9394]::queries::Li
nker>, rustc_driver_impl[a08ff5e51d219c2a]::run_compiler::{closure#0}::{closure#2}>
  31:     0x7f0580696b6a - rustc_span[eee2686a21fb97e]::create_session_globals_then::<(), rustc_interface[dcf0e0a8a73c9394]::util::run_in_thread_with_globals<rustc_interface[dcf0e0a8a73c
9394]::util::run_in_thread_pool_with_globals<rustc_interface[dcf0e0a8a73c9394]::interface::run_compiler<(), rustc_driver_impl[a08ff5e51d219c2a]::run_compiler::{closure#0}>::{closure#1},
()>::{closure#0}, ()>::{closure#0}::{closure#0}::{closure#0}>
  32:     0x7f05806b0309 - std[e20d0b87aa1ec278]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[dcf0e0a8a73c9394]::util::run_in_thread_with_globals<rustc_interface[dcf0e
0a8a73c9394]::util::run_in_thread_pool_with_globals<rustc_interface[dcf0e0a8a73c9394]::interface::run_compiler<(), rustc_driver_impl[a08ff5e51d219c2a]::run_compiler::{closure#0}>::{closu
re#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
  33:     0x7f05806b31be - <<std[e20d0b87aa1ec278]::thread::Builder>::spawn_unchecked_<rustc_interface[dcf0e0a8a73c9394]::util::run_in_thread_with_globals<rustc_interface[dcf0e0a8a73c939
4]::util::run_in_thread_pool_with_globals<rustc_interface[dcf0e0a8a73c9394]::interface::run_compiler<(), rustc_driver_impl[a08ff5e51d219c2a]::run_compiler::{closure#0}>::{closure#1}, ()>
::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[5b293a957d0a6e5f]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  34:     0x7f0583fe194f - std::sys::thread::unix::Thread::new::thread_start::hbaf586a9e50a98cd  35:     0x7f057ea84dfa - start_thread
  36:     0x7f057eb215d8 - __GI___clone3
  37:                0x0 - <unknown>

error: the compiler unexpectedly panicked. this is a bug.

note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md

note: please make sure that you have updated to the latest nightly

note: please attach the file at `/home/sam/git/rust/rustc-ice-2025-11-03T19_25_35-2687335.txt` to your bug report

note: compiler flags: --crate-type lib -C opt-level=3 -C embed-bitcode=no -C symbol-mangling-version=v0 -Z unstable-options -Z macro-backtrace -C split-debuginfo=off -C link-args=-Wl,-z,
origin -C link-args=-Wl,-rpath,$ORIGIN/../lib -Z unstable-options -Z binary-dep-depinfo -Z on-broken-pipe=kill -Z tls-model=initial-exec -Z allow-features=rustc_private,proc_macro_intern
als,proc_macro_diagnostic,proc_macro_span,proc_macro_span_shrink,proc_macro_def_site,new_zeroed_alloc

note: some of the compiler flags provided by cargo are hidden

query stack during panic:
end of query stack
error: could not compile `base-db` (lib)

Caused by:
  process didn't exit successfully: `/home/sam/git/rust/build/bootstrap/debug/rustc /home/sam/git/rust/build/bootstrap/debug/rustc --crate-name base_db --edition=2024 src/tools/rust-anal
yzer/crates/base-db/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --diagnostic-width=186 --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no '--warn=clippy::suspicious' '--warn=clippy::style' '--allow=clippy::restriction' '--deny=clippy::perf' '--deny=clippy::correctness' '--warn=clippy::complexity' '--allow=clippy::wrong_self_convention' '--allow=clippy::vec_init_then_push' '--allow=clippy::useless_asref' --warn=unused_lifetimes --warn=unused_extern_crates --warn=unsafe_op_in_unsafe_fn --warn=unreachable_pub '--allow=clippy::unnecessary_map_or' --warn=unexpected_cfgs '--allow=clippy::type_complexity' '--allow=clippy::too_many_arguments' '--allow=clippy::too_long_first_doc_paragraph' '--warn=clippy::todo' '--warn=clippy::str_to_string' '--allow=clippy::single_match' '--allow=clippy::result_unit_err' '--warn=clippy::rc_buffer' '--warn=clippy::print_stdout' '--warn=clippy::print_stderr' '--allow=clippy::new_ret_no_self' '--allow=clippy::literal_string_with_formatting_args' '--allow=clippy::len_without_is_empty' --warn=explicit_outlives_requirements '--allow=clippy::enum_variant_names' --warn=elided_lifetimes_in_paths '--warn=clippy::dbg_macro' '--allow=clippy::assigning_clones' --check-cfg 'cfg(bootstrap)' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=6bf1b6485dd3b3cd -C extra-filename=-1636374c3827340b --out-dir /home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps --target x86_64-unknown-linux-gnu -L dependency=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps -L dependency=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/release/deps --extern cfg=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libcfg-289a440d8040a881.rmeta --extern dashmap=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libdashmap-7e8f4840592b00c4.rmeta --extern indexmap=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libindexmap-6de900e6b335d877.rmeta --extern intern=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libintern-ca09efff03dc133a.rmeta --extern la_arena=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libla_arena-7147ec83c3020ef7.rmeta --extern query_group=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/release/deps/libquery_group_macro-9c10caeac860314a.so --extern rustc_hash=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/librustc_hash-a49c1471b46069ba.rmeta --extern salsa=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libsalsa-ad2a67e62c759a17.rmeta --extern salsa_macros=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/release/deps/libsalsa_macros-94f846009bb98812.so --extern semver=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libsemver-9841d6c752bd3bec.rmeta --extern span=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libspan-ee4a54f7c7533503.rmeta --extern syntax=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libsyntax-e1db00a480c5a13a.rmeta --extern tracing=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libtracing-c7912d9ce2f51344.rmeta --extern triomphe=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libtriomphe-4302e14cc2c1eb8c.rmeta --extern vfs=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libvfs-c483fddefd51a50e.rmeta --cfg=windows_raw_dylib -Csymbol-mangling-version=v0 -Zunstable-options '--check-cfg=cfg(bootstrap)' '--check-cfg=cfg(rust_analyzer)' -Zmacro-backtrace -Csplit-debuginfo=off -Clink-args=-Wl,-z,origin '-Clink-args=-Wl,-rpath,$ORIGIN/../lib' -Alinker-messages -Zunstable-o
ptions -Z binary-dep-depinfo` (exit status: 101)
warning: build failed, waiting for other jobs to finish...
thread 'rustc' (2688532) panicked at compiler/rustc_codegen_gcc/src/builder.rs:1531:13:
Unexpected type __int8_t *
stack backtrace:
   0:     0x7f25e3420322 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h47627beda0767f4c
   1:     0x7f25e3450a4f - core::fmt::write::h8a63064c67176fd8
   2:     0x7f25e33d17f3 - std::io::Write::write_fmt::h5e9b646cef91150b
   3:     0x7f25e33e6ff2 - std::sys::backtrace::BacktraceLock::print::h4634d27c0afbaebb
   4:     0x7f25e33ef3aa - std::panicking::default_hook::{{closure}}::h23e0299d4738b766
   5:     0x7f25e33ef204 - std::panicking::default_hook::hfeec6294e8751b62
   6:     0x7f25dfabc9f6 - std[e20d0b87aa1ec278]::panicking::update_hook::<alloc[d35db71d034d3387]::boxed::Box<rustc_driver_impl[a08ff5e51d219c2a]::install_ice_hook::{closure#1}>>::{clos
ure#0}
   7:     0x7f25e33efa5f - std::panicking::panic_with_hook::hd57cd463d793ed79
   8:     0x7f25e33ef80a - std::panicking::panic_handler::{{closure}}::hddd6216c3fddee3b
   9:     0x7f25e33e7129 - std::sys::backtrace::__rust_end_short_backtrace::h5e7a56f283378525
  10:     0x7f25e33c32ed - __rustc[256c90bb7e548b45]::rust_begin_unwind
  11:     0x7f25e3460a50 - core::panicking::panic_fmt::hf19c198748ef6a95
  12:     0x7f25dd0e4d48 - <rustc_codegen_gcc[14cfcaa53a631e47]::builder::Builder as rustc_codegen_ssa[9311ecf3104fcde6]::traits::builder::BuilderMethods>::extract_value
  13:     0x7f25dd02a0db - <rustc_codegen_ssa[9311ecf3104fcde6]::mir::FunctionCx<rustc_codegen_gcc[14cfcaa53a631e47]::builder::Builder>>::store_return
  14:     0x7f25dd07e7fe - <rustc_codegen_ssa[9311ecf3104fcde6]::mir::block::TerminatorCodegenHelper>::do_call::<rustc_codegen_gcc[14cfcaa53a631e47]::builder::Builder>
  15:     0x7f25dd03006b - <rustc_codegen_ssa[9311ecf3104fcde6]::mir::FunctionCx<rustc_codegen_gcc[14cfcaa53a631e47]::builder::Builder>>::codegen_call_terminator
  16:     0x7f25dd02b17a - <rustc_codegen_ssa[9311ecf3104fcde6]::mir::FunctionCx<rustc_codegen_gcc[14cfcaa53a631e47]::builder::Builder>>::codegen_block
  17:     0x7f25dd01da53 - rustc_codegen_ssa[9311ecf3104fcde6]::mir::codegen_mir::<rustc_codegen_gcc[14cfcaa53a631e47]::builder::Builder>
  18:     0x7f25dd0904e1 - rustc_codegen_ssa[9311ecf3104fcde6]::base::codegen_instance::<rustc_codegen_gcc[14cfcaa53a631e47]::builder::Builder>
  19:     0x7f25dd086f29 - <rustc_middle[7cfc6eadeeeb72d5]::mir::mono::MonoItem as rustc_codegen_ssa[9311ecf3104fcde6]::mono_item::MonoItemExt>::define::<rustc_codegen_gcc[14cfcaa53a631e
47]::builder::Builder>
  20:     0x7f25dd000e25 - rustc_codegen_gcc[14cfcaa53a631e47]::base::compile_codegen_unit::module_codegen
  21:     0x7f25dcff9524 - rustc_codegen_gcc[14cfcaa53a631e47]::base::compile_codegen_unit
  22:     0x7f25dd08f93b - rustc_codegen_ssa[9311ecf3104fcde6]::base::codegen_crate::<rustc_codegen_gcc[14cfcaa53a631e47]::GccCodegenBackend>
  23:     0x7f25dd0611dc - <rustc_codegen_gcc[14cfcaa53a631e47]::GccCodegenBackend as rustc_codegen_ssa[9311ecf3104fcde6]::traits::backend::CodegenBackend>::codegen_crate
  24:     0x7f25dfd34cee - <rustc_session[f994edabbc433fc4]::session::Session>::time::<alloc[d35db71d034d3387]::boxed::Box<dyn core[5b293a957d0a6e5f]::any::Any>, rustc_interface[dcf0e0a8
a73c9394]::passes::start_codegen::{closure#0}>
  25:     0x7f25dfd743d8 - rustc_interface[dcf0e0a8a73c9394]::passes::start_codegen
  26:     0x7f25dfd4851a - <rustc_interface[dcf0e0a8a73c9394]::queries::Linker>::codegen_and_build_linker
  27:     0x7f25dfad362c - <std[e20d0b87aa1ec278]::thread::local::LocalKey<core[5b293a957d0a6e5f]::cell::Cell<*const ()>>>::with::<rustc_middle[7cfc6eadeeeb72d5]::ty::context::tls::enter
_context<<rustc_middle[7cfc6eadeeeb72d5]::ty::context::GlobalCtxt>::enter<rustc_interface[dcf0e0a8a73c9394]::passes::create_and_enter_global_ctxt<core[5b293a957d0a6e5f]::option::Option<r
ustc_interface[dcf0e0a8a73c9394]::queries::Linker>, rustc_driver_impl[a08ff5e51d219c2a]::run_compiler::{closure#0}::{closure#2}>::{closure#2}::{closure#0}, core[5b293a957d0a6e5f]::option
::Option<rustc_interface[dcf0e0a8a73c9394]::queries::Linker>>::{closure#1}, core[5b293a957d0a6e5f]::option::Option<rustc_interface[dcf0e0a8a73c9394]::queries::Linker>>::{closure#0}, core
[5b293a957d0a6e5f]::option::Option<rustc_interface[dcf0e0a8a73c9394]::queries::Linker>>
  28:     0x7f25dfa8328b - <rustc_middle[7cfc6eadeeeb72d5]::ty::context::TyCtxt>::create_global_ctxt::<core[5b293a957d0a6e5f]::option::Option<rustc_interface[dcf0e0a8a73c9394]::queries::
Linker>, rustc_interface[dcf0e0a8a73c9394]::passes::create_and_enter_global_ctxt<core[5b293a957d0a6e5f]::option::Option<rustc_interface[dcf0e0a8a73c9394]::queries::Linker>, rustc_driver_
impl[a08ff5e51d219c2a]::run_compiler::{closure#0}::{closure#2}>::{closure#2}::{closure#0}>
  29:     0x7f25dfa594e0 - <rustc_interface[dcf0e0a8a73c9394]::passes::create_and_enter_global_ctxt<core[5b293a957d0a6e5f]::option::Option<rustc_interface[dcf0e0a8a73c9394]::queries::Lin
ker>, rustc_driver_impl[a08ff5e51d219c2a]::run_compiler::{closure#0}::{closure#2}>::{closure#2} as core[5b293a957d0a6e5f]::ops::function::FnOnce<(&rustc_session[f994edabbc433fc4]::sessio
n::Session, rustc_middle[7cfc6eadeeeb72d5]::ty::context::CurrentGcx, alloc[d35db71d034d3387]::sync::Arc<rustc_data_structures[ab2ce16cad8618aa]::jobserver::Proxy>, &std[e20d0b87aa1ec278]
::sync::once_lock::OnceLock<rustc_middle[7cfc6eadeeeb72d5]::ty::context::GlobalCtxt>, &rustc_data_structures[ab2ce16cad8618aa]::sync::worker_local::WorkerLocal<rustc_middle[7cfc6eadeeeb7
2d5]::arena::Arena>, &rustc_data_structures[ab2ce16cad8618aa]::sync::worker_local::WorkerLocal<rustc_hir[24a6abdd5fd8257e]::Arena>, rustc_driver_impl[a08ff5e51d219c2a]::run_compiler::{cl
osure#0}::{closure#2})>>::call_once::{shim:vtable#0}  30:     0x7f25dfa580b9 - rustc_interface[dcf0e0a8a73c9394]::passes::create_and_enter_global_ctxt::<core[5b293a957d0a6e5f]::option::Option<rustc_interface[dcf0e0a8a73c19:25:42 [20/9610]
nker>, rustc_driver_impl[a08ff5e51d219c2a]::run_compiler::{closure#0}::{closure#2}>
  31:     0x7f25dfa96b6a - rustc_span[eee2686a21fb97e]::create_session_globals_then::<(), rustc_interface[dcf0e0a8a73c9394]::util::run_in_thread_with_globals<rustc_interface[dcf0e0a8a73c
9394]::util::run_in_thread_pool_with_globals<rustc_interface[dcf0e0a8a73c9394]::interface::run_compiler<(), rustc_driver_impl[a08ff5e51d219c2a]::run_compiler::{closure#0}>::{closure#1},
()>::{closure#0}, ()>::{closure#0}::{closure#0}::{closure#0}>
  32:     0x7f25dfab0309 - std[e20d0b87aa1ec278]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[dcf0e0a8a73c9394]::util::run_in_thread_with_globals<rustc_interface[dcf0e
0a8a73c9394]::util::run_in_thread_pool_with_globals<rustc_interface[dcf0e0a8a73c9394]::interface::run_compiler<(), rustc_driver_impl[a08ff5e51d219c2a]::run_compiler::{closure#0}>::{closu
re#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
  33:     0x7f25dfab31be - <<std[e20d0b87aa1ec278]::thread::Builder>::spawn_unchecked_<rustc_interface[dcf0e0a8a73c9394]::util::run_in_thread_with_globals<rustc_interface[dcf0e0a8a73c939
4]::util::run_in_thread_pool_with_globals<rustc_interface[dcf0e0a8a73c9394]::interface::run_compiler<(), rustc_driver_impl[a08ff5e51d219c2a]::run_compiler::{closure#0}>::{closure#1}, ()>
::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[5b293a957d0a6e5f]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  34:     0x7f25e33e194f - std::sys::thread::unix::Thread::new::thread_start::hbaf586a9e50a98cd
  35:     0x7f25dde84dfa - start_thread
  36:     0x7f25ddf215d8 - __GI___clone3
  37:                0x0 - <unknown>

error: the compiler unexpectedly panicked. this is a bug.

note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md

note: please make sure that you have updated to the latest nightly

note: please attach the file at `/home/sam/git/rust/rustc-ice-2025-11-03T19_25_37-2688528.txt` to your bug report

note: compiler flags: --crate-type lib -C opt-level=3 -C embed-bitcode=no -C symbol-mangling-version=v0 -Z unstable-options -Z macro-backtrace -C split-debuginfo=off -C link-args=-Wl,-z,
origin -C link-args=-Wl,-rpath,$ORIGIN/../lib -Z unstable-options -Z binary-dep-depinfo -Z on-broken-pipe=kill -Z tls-model=initial-exec -Z allow-features=rustc_private,proc_macro_intern
als,proc_macro_diagnostic,proc_macro_span,proc_macro_span_shrink,proc_macro_def_site,new_zeroed_alloc

note: some of the compiler flags provided by cargo are hidden

query stack during panic:
end of query stack
error: could not compile `hir-expand` (lib)

Caused by:
  process didn't exit successfully: `/home/sam/git/rust/build/bootstrap/debug/rustc /home/sam/git/rust/build/bootstrap/debug/rustc --crate-name hir_expand --edition=2024 src/tools/rust-a
nalyzer/crates/hir-expand/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --diagnostic-width=186 --crate-type lib --emit=dep-info,metadata,link -
C opt-level=3 -C embed-bitcode=no '--warn=clippy::suspicious' '--warn=clippy::style' '--allow=clippy::restriction' '--deny=clippy::perf' '--deny=clippy::correctness' '--warn=clippy::comp
lexity' '--allow=clippy::wrong_self_convention' '--allow=clippy::vec_init_then_push' '--allow=clippy::useless_asref' --warn=unused_lifetimes --warn=unused_extern_crates --warn=unsafe_op_
in_unsafe_fn --warn=unreachable_pub '--allow=clippy::unnecessary_map_or' --warn=unexpected_cfgs '--allow=clippy::type_complexity' '--allow=clippy::too_many_arguments' '--allow=clippy::to
o_long_first_doc_paragraph' '--warn=clippy::todo' '--warn=clippy::str_to_string' '--allow=clippy::single_match' '--allow=clippy::result_unit_err' '--warn=clippy::rc_buffer' '--warn=clipp
y::print_stdout' '--warn=clippy::print_stderr' '--allow=clippy::new_ret_no_self' '--allow=clippy::literal_string_with_formatting_args' '--allow=clippy::len_without_is_empty' --warn=expli
cit_outlives_requirements '--allow=clippy::enum_variant_names' --warn=elided_lifetimes_in_paths '--warn=clippy::dbg_macro' '--allow=clippy::assigning_clones' --check-cfg 'cfg(bootstrap)'
 --cfg 'feature="in-rust-tree"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("in-rust-tree"))' -C metadata=7d5ab60b7d3bf4ab -C extra-filename=-973b90825d73c6eb --out-dir /home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps --target x86_64-unknown-linux-gnu -L dependency=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps -L dependency=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/release/deps --extern base_db=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libbase_db-1636374c3827340b.rmeta --extern cfg=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libcfg-289a440d8040a881.rmeta --extern cov_mark=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libcov_mark-875961be77dd30b7.rmeta --extern either=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libeither-6adb34716ed382cf.rmeta --extern intern=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libintern-ca09efff03dc133a.rmeta --extern itertools=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libitertools-2b7030d06d682684.rmeta --extern mbe=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libmbe-38c2f8ad5dcfdfc5.rmeta --extern parser=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libparser-684eff85b762b5ab.rmeta --extern query_group=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/release/deps/libquery_group_macro-9c10caeac860314a.so --extern rustc_hash=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/librustc_hash-a49c1471b46069ba.rmeta --extern salsa=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libsalsa-ad2a67e62c759a17.rmeta --extern salsa_macros=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/release/deps/libsalsa_macros-94f846009bb98812.so --extern smallvec=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libsmallvec-7e7489720e82ff4c.rmeta --extern span=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libspan-ee4a54f7c7533503.rmeta --extern stdx=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libstdx-a4736420b6868552.rmeta --extern syntax=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libsyntax-e1db00a480c5a13a.rmeta --extern syntax_bridge=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libsyntax_bridge-0d26a40b9e06d1a3.rmeta --extern tracing=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libtracing-c7912d9ce2f51344.rmeta --extern triomphe=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libtriomphe-4302e14cc2c1eb8c.rmeta --extern tt=/home/sam/git/rust/build/x86_64-unknown-linux-gnu/stage2-tools/x86_64-unknown-linux-gnu/release/deps/libtt-e53196d136d7add1.rmeta --cfg=windows_raw_dylib -Csymbol-mangling-version=v0 -Zunstable-options '--check-cfg=cfg(bootstrap)' '--check-cfg=cfg(rust_analyzer)' -Zmacro-backtrace -Csplit-debuginfo=off -Clink-args=-Wl,-z,origin '-Clink-args=-Wl,-rpath,$ORIGIN/../lib' -Alinker-messages -Zunstable-options -Z binary-dep-depinfo` (exit status: 101)
    Building [=====================>   ] 343/387: protobuf, xtask(bin)
    Building [=====================>   ] 344/387: protobuf
Build completed unsuccessfully in 0:27:44

Activity

  1. antoyo
    added
    bugSomething isn't working
    on Nov 3, 2025

  2. antoyo commented on Nov 3, 2025

    @antoyo
    antoyo
    on Nov 3, 2025
    Contributor

    Thanks for reporting this issue.

    Just to make sure, the reproduction steps are running ./x.py build with the above bootstrap.toml?

  3. thesamesam commented on Nov 3, 2025

    @thesamesam
    thesamesam
    on Nov 3, 2025
    Author

    Yes, that should be enough. I didn't do anything special hopefully. I'll try repro on another machine as well.

  4. thesamesam commented on Nov 3, 2025

    @thesamesam
    thesamesam
    on Nov 3, 2025
    Author

    OK, I repro'd on another machine with a clean checkout of my branch and that bootstrap.toml.

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