socket2 failed to complie: const parameter `'bufs/#1` ('bufs/#1/1) out of range when instantiating args=[]

[Xuanwo]

Code

I'm guessing it's related to the usage of const parameter.

The error could happen in socket2, log and many other crates.

Meta

rustc

:) rustc +nightly --version --verbose
rustc 1.86.0-nightly (8361aef0d 2025-01-14)
binary: rustc
commit-hash: 8361aef0d7c29b1501a316a208ed84cd8a2ae5da
commit-date: 2025-01-14
host: x86_64-unknown-linux-gnu
release: 1.86.0-nightly
LLVM version: 19.1.6

Error output

   Compiling socket2 v0.5.8

thread 'rustc' panicked at /rustc/8361aef0d7c29b1501a316a208ed84cd8a2ae5da/compiler/rustc_type_ir/src/binder.rs:806:9:
const parameter `'bufs/#1` ('bufs/#1/1) out of range when instantiating args=[]
stack backtrace:
   0: rust_begin_unwind
   1: core::panicking::panic_fmt
   2: <rustc_type_ir::binder::ArgFolder<rustc_middle::ty::context::TyCtxt>>::region_param_out_of_range
   3: <rustc_middle::ty::generics::GenericPredicates>::instantiate_into
   4: rustc_trait_selection::traits::instantiate_and_check_impossible_predicates
      [... omitted 2 frames ...]
   5: rustc_middle::query::plumbing::query_get_at::<rustc_query_system::query::caches::DefaultCache<(rustc_span::def_id::DefId, &rustc_middle::ty::list::RawList<(), rustc_middle::ty::generic_args::GenericArg>), rustc_middle::query::erase::Erased<[u8; 1]>>>
   6: rustc_monomorphize::partitioning::collect_and_partition_mono_items
      [... omitted 2 frames ...]
   7: rustc_codegen_ssa::back::symbol_export::exported_symbols_provider_local
      [... omitted 2 frames ...]
   8: <rustc_metadata::rmeta::encoder::EncodeContext>::encode_crate_root
   9: rustc_metadata::rmeta::encoder::encode_metadata
  10: rustc_metadata::fs::encode_and_write_metadata
  11: <rustc_interface::queries::Linker>::codegen_and_build_linker
  12: rustc_interface::passes::create_and_enter_global_ctxt::<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure#2}>::{closure#2}::{closure#0}
  13: rustc_interface::interface::run_compiler::<(), rustc_driver_impl::run_compiler::{closure#0}>::{closure#1}
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

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/runner/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/socket2-0.5.8/rustc-ice-2025-01-15T02_35_28-4146.txt` to your bug report

note: compiler flags: --crate-type lib -C opt-level=3 -C embed-bitcode=no -C debuginfo=2 -C passes=sancov-module -C llvm-args=-sanitizer-coverage-level=4 -C llvm-args=-sanitizer-coverage-inline-8bit-counters -C llvm-args=-sanitizer-coverage-pc-table -C llvm-args=-sanitizer-coverage-trace-compares -C link-dead-code -Z sanitizer=address -C llvm-args=-sanitizer-coverage-stack-depth -C debug-assertions -C codegen-units=1 -C force-frame-pointers=yes -C debuginfo=1

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

query stack during panic:
#0 [instantiate_and_check_impossible_predicates] checking impossible instantiated predicates: `MsgHdr`
#1 [collect_and_partition_mono_items] collect_and_partition_mono_items
#2 [exported_symbols] collecting exported symbols for crate `0`
end of query stack
error: could not compile `socket2` (lib)

Caused by:
  process didn't exit successfully: `/home/runner/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/bin/rustc --crate-name socket2 --edition=2021 /home/runner/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/socket2-0.5.8/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="all"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("all"))' -C metadata=78d5368e476ea360 -C extra-filename=-313d591cfec10c0d --out-dir /home/runner/work/opendal/opendal/core/target/x86_64-unknown-linux-gnu/release/deps --target x86_64-unknown-linux-gnu -L dependency=/home/runner/work/opendal/opendal/core/target/x86_64-unknown-linux-gnu/release/deps -L dependency=/home/runner/work/opendal/opendal/core/target/release/deps --extern libc=/home/runner/work/opendal/opendal/core/target/x86_64-unknown-linux-gnu/release/deps/liblibc-2c482f5a0dbad026.rmeta --cap-lints allow -Cpasses=sancov-module -Cllvm-args=-sanitizer-coverage-level=4 -Cllvm-args=-sanitizer-coverage-inline-8bit-counters -Cllvm-args=-sanitizer-coverage-pc-table -Cllvm-args=-sanitizer-coverage-trace-compares --cfg fuzzing -Clink-dead-code -Zsanitizer=address -Cllvm-args=-sanitizer-coverage-stack-depth -Cdebug-assertions -C codegen-units=1 -C force-frame-pointers=yes -C debuginfo=1` (exit status: 101)
warning: build failed, waiting for other jobs to finish...
Error: failed to build fuzz script: ASAN_OPTIONS="detect_odr_violation=0" RUSTFLAGS="-Cpasses=sancov-module -Cllvm-args=-sanitizer-coverage-level=4 -Cllvm-args=-sanitizer-coverage-inline-8bit-counters -Cllvm-args=-sanitizer-coverage-pc-table -Cllvm-args=-sanitizer-coverage-trace-compares --cfg fuzzing -Clink-dead-code -Zsanitizer=address -Cllvm-args=-sanitizer-coverage-stack-depth -Cdebug-assertions -C codegen-units=1 -C force-frame-pointers=yes -C debuginfo=1" "cargo" "build" "--manifest-path" "/home/runner/work/opendal/opendal/core/fuzz/Cargo.toml" "--target" "x86_64-unknown-linux-gnu" "--release" "--config" "profile.release.debug=true" "--features" "services-fs" "--bin" "fuzz_reader"

Stack backtrace:
   0: anyhow::error::<impl anyhow::Error>::msg
   1: cargo_fuzz::project::FuzzProject::exec_build
   2: cargo_fuzz::project::FuzzProject::exec_fuzz
   3: <cargo_fuzz::options::run::Run as cargo_fuzz::RunCommand>::run_command
   4: cargo_fuzz::main
   5: std::sys::backtrace::__rust_begin_short_backtrace
   6: std::rt::lang_start::{{closure}}
   7: std::rt::lang_start_internal
   8: main
   9: <unknown>
  10: __libc_start_main
  11: _start

Also reproduced locally with the same rustc version:

Backtrace

thread 'rustc' panicked at /rustc/8361aef0d7c29b1501a316a208ed84cd8a2ae5da/compiler/rustc_type_ir/src/binder.rs:806:9:
const parameter `'a/#0` ('a/#0/0) out of range when instantiating args=[]
stack backtrace:
   0: rust_begin_unwind
   1: core::panicking::panic_fmt
   2: <rustc_type_ir::binder::ArgFolder<rustc_middle::ty::context::TyCtxt>>::region_param_out_of_range
   3: <rustc_middle::ty::generics::GenericPredicates>::instantiate_into
   4: rustc_trait_selection::traits::instantiate_and_check_impossible_predicates
      [... omitted 2 frames ...]
   5: rustc_middle::query::plumbing::query_get_at::<rustc_query_system::query::caches::DefaultCache<(rustc_span::def_id::DefId, &rustc_middle::ty::list::RawList<(), rustc_middle::ty::generic_args::GenericArg>), rustc_middle::query::erase::Erased<[u8; 1]>>>
   6: rustc_monomorphize::partitioning::collect_and_partition_mono_items
      [... omitted 2 frames ...]
   7: rustc_codegen_ssa::back::symbol_export::exported_symbols_provider_local
      [... omitted 2 frames ...]
   8: <rustc_metadata::rmeta::encoder::EncodeContext>::encode_crate_root
   9: rustc_metadata::rmeta::encoder::encode_metadata
  10: rustc_metadata::fs::encode_and_write_metadata
  11: <rustc_interface::queries::Linker>::codegen_and_build_linker
  12: rustc_interface::passes::create_and_enter_global_ctxt::<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure#2}>::{closure#2}::{closure#0}
  13: rustc_interface::interface::run_compiler::<(), rustc_driver_impl::run_compiler::{closure#0}>::{closure#1}
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

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/xuanwo/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/log-0.4.22/rustc-ice-2025-01-15T02_49_11-9109.txt` to your bug report

note: compiler flags: --crate-type lib -C opt-level=3 -C embed-bitcode=no -C debuginfo=2 -C linker=clang -C passes=sancov-module -C llvm-args=-sanitizer-coverage-level=4 -C llvm-args=-sanitizer-coverage-inline-8bit-counters -C llvm-args=-sanitizer-coverage-pc-table -C llvm-args=-sanitizer-coverage-trace-compares -C link-dead-code -Z sanitizer=address -C llvm-args=-sanitizer-coverage-stack-depth -C debug-assertions -C codegen-units=1

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

query stack during panic:
#0 [instantiate_and_check_impossible_predicates] checking impossible instantiated predicates: `Record`
#1 [collect_and_partition_mono_items] collect_and_partition_mono_items
#2 [exported_symbols] collecting exported symbols for crate `0`
end of query stack
error: could not compile `log` (lib)

Caused by:
  process didn't exit successfully: `/home/xuanwo/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/bin/rustc --crate-name log --edition=2021 /home/xuanwo/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/log-0.4.22/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --diagnostic-width=174 --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("kv", "kv_serde", "kv_std", "kv_sval", "kv_unstable", "kv_unstable_serde", "kv_unstable_std", "kv_unstable_sval", "max_level_debug", "max_level_error", "max_level_info", "max_level_off", "max_level_trace", "max_level_warn", "release_max_level_debug", "release_max_level_error", "release_max_level_info", "release_max_level_off", "release_max_level_trace", "release_max_level_warn", "serde", "std", "sval", "sval_ref", "value-bag"))' -C metadata=d9b55e78b5b56df3 -C extra-filename=-78316fc904558543 --out-dir /home/xuanwo/Code/apache/opendal/core/target/x86_64-unknown-linux-gnu/release/deps --target x86_64-unknown-linux-gnu -C linker=clang -L dependency=/home/xuanwo/Code/apache/opendal/core/target/x86_64-unknown-linux-gnu/release/deps -L dependency=/home/xuanwo/Code/apache/opendal/core/target/release/deps --cap-lints allow -Cpasses=sancov-module -Cllvm-args=-sanitizer-coverage-level=4 -Cllvm-args=-sanitizer-coverage-inline-8bit-counters -Cllvm-args=-sanitizer-coverage-pc-table -Cllvm-args=-sanitizer-coverage-trace-compares --cfg fuzzing -Clink-dead-code -Zsanitizer=address -Cllvm-args=-sanitizer-coverage-stack-depth -Cdebug-assertions -C codegen-units=1` (exit status: 101)
warning: build failed, waiting for other jobs to finish...

thread 'rustc' panicked at /rustc/8361aef0d7c29b1501a316a208ed84cd8a2ae5da/compiler/rustc_type_ir/src/binder.rs:806:9:
const parameter `'a/#0` ('a/#0/0) out of range when instantiating args=[]
stack backtrace:
   0: rust_begin_unwind
   1: core::panicking::panic_fmt
   2: <rustc_type_ir::binder::ArgFolder<rustc_middle::ty::context::TyCtxt>>::region_param_out_of_range
   3: <rustc_middle::ty::generics::GenericPredicates>::instantiate_into
   4: rustc_trait_selection::traits::instantiate_and_check_impossible_predicates
      [... omitted 2 frames ...]
   5: rustc_middle::query::plumbing::query_get_at::<rustc_query_system::query::caches::DefaultCache<(rustc_span::def_id::DefId, &rustc_middle::ty::list::RawList<(), rustc_middle::ty::generic_args::GenericArg>), rustc_middle::query::erase::Erased<[u8; 1]>>>
   6: rustc_monomorphize::partitioning::collect_and_partition_mono_items
      [... omitted 2 frames ...]
   7: rustc_codegen_ssa::back::symbol_export::exported_symbols_provider_local
      [... omitted 2 frames ...]
   8: <rustc_metadata::rmeta::encoder::EncodeContext>::encode_crate_root
   9: rustc_metadata::rmeta::encoder::encode_metadata
  10: rustc_metadata::fs::encode_and_write_metadata
  11: <rustc_interface::queries::Linker>::codegen_and_build_linker
  12: rustc_interface::passes::create_and_enter_global_ctxt::<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure#2}>::{closure#2}::{closure#0}
  13: rustc_interface::interface::run_compiler::<(), rustc_driver_impl::run_compiler::{closure#0}>::{closure#1}
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

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/xuanwo/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tracing-core-0.1.33/rustc-ice-2025-01-15T02_49_11-8981.txt` to your bug report

note: compiler flags: --crate-type lib -C opt-level=3 -C embed-bitcode=no -C debuginfo=2 -C linker=clang -C passes=sancov-module -C llvm-args=-sanitizer-coverage-level=4 -C llvm-args=-sanitizer-coverage-inline-8bit-counters -C llvm-args=-sanitizer-coverage-pc-table -C llvm-args=-sanitizer-coverage-trace-compares -C link-dead-code -Z sanitizer=address -C llvm-args=-sanitizer-coverage-stack-depth -C debug-assertions -C codegen-units=1

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

query stack during panic:
#0 [instantiate_and_check_impossible_predicates] checking impossible instantiated predicates: `event::Event`
#1 [collect_and_partition_mono_items] collect_and_partition_mono_items
#2 [exported_symbols] collecting exported symbols for crate `0`
end of query stack
error: could not compile `tracing-core` (lib)

Caused by:
  process didn't exit successfully: `/home/xuanwo/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/bin/rustc --crate-name tracing_core --edition=2018 /home/xuanwo/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tracing-core-0.1.33/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --diagnostic-width=174 --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no -C debuginfo=2 --warn=unexpected_cfgs --check-cfg 'cfg(flaky_tests)' --check-cfg 'cfg(tracing_unstable)' --cfg 'feature="default"' --cfg 'feature="once_cell"' --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("default", "once_cell", "std", "valuable"))' -C metadata=4ad45f0043b4d23c -C extra-filename=-d41ca2c342f60bca --out-dir /home/xuanwo/Code/apache/opendal/core/target/x86_64-unknown-linux-gnu/release/deps --target x86_64-unknown-linux-gnu -C linker=clang -L dependency=/home/xuanwo/Code/apache/opendal/core/target/x86_64-unknown-linux-gnu/release/deps -L dependency=/home/xuanwo/Code/apache/opendal/core/target/release/deps --extern once_cell=/home/xuanwo/Code/apache/opendal/core/target/x86_64-unknown-linux-gnu/release/deps/libonce_cell-229b6e37629c0396.rmeta --cap-lints allow -Cpasses=sancov-module -Cllvm-args=-sanitizer-coverage-level=4 -Cllvm-args=-sanitizer-coverage-inline-8bit-counters -Cllvm-args=-sanitizer-coverage-pc-table -Cllvm-args=-sanitizer-coverage-trace-compares --cfg fuzzing -Clink-dead-code -Zsanitizer=address -Cllvm-args=-sanitizer-coverage-stack-depth -Cdebug-assertions -C codegen-units=1` (exit status: 101)

thread 'rustc' panicked at /rustc/8361aef0d7c29b1501a316a208ed84cd8a2ae5da/compiler/rustc_type_ir/src/binder.rs:806:9:
const parameter `'b/#1` ('b/#1/1) out of range when instantiating args=[]
stack backtrace:
   0: rust_begin_unwind
   1: core::panicking::panic_fmt
   2: <rustc_type_ir::binder::ArgFolder<rustc_middle::ty::context::TyCtxt>>::region_param_out_of_range
   3: <rustc_middle::ty::generics::GenericPredicates>::instantiate_into
   4: rustc_trait_selection::traits::instantiate_and_check_impossible_predicates
      [... omitted 2 frames ...]
   5: rustc_middle::query::plumbing::query_get_at::<rustc_query_system::query::caches::DefaultCache<(rustc_span::def_id::DefId, &rustc_middle::ty::list::RawList<(), rustc_middle::ty::generic_args::GenericArg>), rustc_middle::query::erase::Erased<[u8; 1]>>>
   6: rustc_monomorphize::partitioning::collect_and_partition_mono_items
      [... omitted 2 frames ...]
   7: rustc_codegen_ssa::back::symbol_export::exported_symbols_provider_local
      [... omitted 2 frames ...]
   8: <rustc_metadata::rmeta::encoder::EncodeContext>::encode_crate_root
   9: rustc_metadata::rmeta::encoder::encode_metadata
  10: rustc_metadata::fs::encode_and_write_metadata
  11: <rustc_interface::queries::Linker>::codegen_and_build_linker
  12: rustc_interface::passes::create_and_enter_global_ctxt::<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure#2}>::{closure#2}::{closure#0}
  13: rustc_interface::interface::run_compiler::<(), rustc_driver_impl::run_compiler::{closure#0}>::{closure#1}
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

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/xuanwo/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/base64-0.22.1/rustc-ice-2025-01-15T02_49_11-9203.txt` to your bug report

note: compiler flags: --crate-type lib -C opt-level=3 -C embed-bitcode=no -C debuginfo=2 -C linker=clang -C passes=sancov-module -C llvm-args=-sanitizer-coverage-level=4 -C llvm-args=-sanitizer-coverage-inline-8bit-counters -C llvm-args=-sanitizer-coverage-pc-table -C llvm-args=-sanitizer-coverage-trace-compares -C link-dead-code -Z sanitizer=address -C llvm-args=-sanitizer-coverage-stack-depth -C debug-assertions -C codegen-units=1

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

query stack during panic:
#0 [instantiate_and_check_impossible_predicates] checking impossible instantiated predicates: `display::FormatterSink`
#1 [collect_and_partition_mono_items] collect_and_partition_mono_items
#2 [exported_symbols] collecting exported symbols for crate `0`
end of query stack
error: could not compile `base64` (lib)

Caused by:
  process didn't exit successfully: `/home/xuanwo/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/bin/rustc --crate-name base64 --edition=2018 /home/xuanwo/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/base64-0.22.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --diagnostic-width=174 --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="alloc"' --cfg 'feature="default"' --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("alloc", "default", "std"))' -C metadata=50f9450385453d68 -C extra-filename=-5b6f0ea15578df57 --out-dir /home/xuanwo/Code/apache/opendal/core/target/x86_64-unknown-linux-gnu/release/deps --target x86_64-unknown-linux-gnu -C linker=clang -L dependency=/home/xuanwo/Code/apache/opendal/core/target/x86_64-unknown-linux-gnu/release/deps -L dependency=/home/xuanwo/Code/apache/opendal/core/target/release/deps --cap-lints allow -Cpasses=sancov-module -Cllvm-args=-sanitizer-coverage-level=4 -Cllvm-args=-sanitizer-coverage-inline-8bit-counters -Cllvm-args=-sanitizer-coverage-pc-table -Cllvm-args=-sanitizer-coverage-trace-compares --cfg fuzzing -Clink-dead-code -Zsanitizer=address -Cllvm-args=-sanitizer-coverage-stack-depth -Cdebug-assertions -C codegen-units=1` (exit status: 101)
Error: failed to build fuzz script: ASAN_OPTIONS="detect_odr_violation=0" RUSTFLAGS="-Cpasses=sancov-module -Cllvm-args=-sanitizer-coverage-level=4 -Cllvm-args=-sanitizer-coverage-inline-8bit-counters -Cllvm-args=-sanitizer-coverage-pc-table -Cllvm-args=-sanitizer-coverage-trace-compares --cfg fuzzing -Clink-dead-code -Zsanitizer=address -Cllvm-args=-sanitizer-coverage-stack-depth -Cdebug-assertions -C codegen-units=1" "cargo" "build" "--manifest-path" "/home/xuanwo/Code/apache/opendal/core/fuzz/Cargo.toml" "--target" "x86_64-unknown-linux-gnu" "--release" "--config" "profile.release.debug=true" "--features" "services-fs" "--bin" "fuzz_reader"

Stack backtrace:
   0: anyhow::error::<impl anyhow::Error>::msg
   1: cargo_fuzz::project::FuzzProject::exec_build
   2: cargo_fuzz::project::FuzzProject::exec_fuzz
   3: <cargo_fuzz::options::run::Run as cargo_fuzz::RunCommand>::run_command
   4: cargo_fuzz::main
   5: std::sys::backtrace::__rust_begin_short_backtrace
   6: std::rt::lang_start::{{closure}}
   7: std::rt::lang_start_internal
   8: main
   9: <unknown>
  10: __libc_start_main
  11: _start
RUST_BACKTRACE=1 cargo +nightly fuzz run fuzz_reader --features services-fs -  39.76s user 4.45s system 239% cpu 18.473 total

Here is the rustc-ice-2025-01-15T02_49_11-9109.txt

rustc-ice-2025-01-15T02_49_11-9109.txt

[saethlin]

Just hit this when compiling serde as a dependency of a fuzz target.

[saethlin]

This will repro

cargo new --lib scratch
cd scratch
cargo fuzz init
cargo add serde
cargo fuzz build fuzz_target_1

searched nightlies: from nightly-2025-01-12 to nightly-2025-01-15
regressed nightly: nightly-2025-01-15
searched commit range: 48a426e...8361aef
regressed commit: 3736b85

That's #135313

But I feel like based on what that PR does, this is a pre-existing bug.

[compiler-errors]

I'll check it out