rust-lang / rust-lang/rust

Open source library I work on (`proof-of-sql`) doesn't compile due to rustc error

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A-incr-comp C-bug I-ICE S-needs-repro T-compiler
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Rust
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Description

Code

Here is what was being compiled: https://github.com/spaceandtimelabs/sxt-proof-of-sql/pull/252/commits/f949012b404c97435d73c6bbae2cdd69f371ceec

Meta

rustc --version --verbose:
rustc 1.81.0 (eeb90cda1 2024-09-04)
binary: rustc
commit-hash: eeb90cda1969383f56a2637cbd3037bdf598841c
commit-date: 2024-09-04
host: x86_64-unknown-linux-gnu
release: 1.81.0
LLVM version: 18.1.7

Error output
thread 'rustc' panicked at compiler/rustc_middle/src/query/on_disk_cache.rs:520:5:
assertion `left == right` failed
  left: 13907096687038349567
 right: 1002111927320821928687967599834759150
stack backtrace:
   0:     0x737f0b78a3e5 - std::backtrace_rs::backtrace::libunwind::trace::h649ab3318d3445c5
                               at /rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
   1:     0x737f0b78a3e5 - std::backtrace_rs::backtrace::trace_unsynchronized::hf4bb60c3387150c3
                               at /rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x737f0b78a3e5 - std::sys::backtrace::_print_fmt::hd9186c800e44bd00
                               at /rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library/std/src/sys/backtrace.rs:65:5
   3:     0x737f0b78a3e5 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h1b9dad2a88e955ff
                               at /rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library/std/src/sys/backtrace.rs:40:26
   4:     0x737f0b7d9eeb - core::fmt::rt::Argument::fmt::h351a7824f737a6a0
                               at /rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library/core/src/fmt/rt.rs:173:76
   5:     0x737f0b7d9eeb - core::fmt::write::h4b5a1270214bc4a7
                               at /rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library/core/src/fmt/mod.rs:1182:21
   6:     0x737f0b77ef6f - std::io::Write::write_fmt::hd04af345a50c312d
                               at /rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library/std/src/io/mod.rs:1827:15
   7:     0x737f0b78cbd1 - std::sys::backtrace::BacktraceLock::print::h68d41b51481bce5c
                               at /rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library/std/src/sys/backtrace.rs:43:9
   8:     0x737f0b78cbd1 - std::panicking::default_hook::{{closure}}::h96ab15e9936be7ed
                               at /rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library/std/src/panicking.rs:269:22
   9:     0x737f0b78c8ac - std::panicking::default_hook::h3cacb9c27561ad33
                               at /rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library/std/src/panicking.rs:296:9
  10:     0x737f07e93420 - std[1f2242ed6435445e]::panicking::update_hook::<alloc[7b1462a1eb55c293]::boxed::Box<rustc_driver_impl[8683aa37472b7dde]::install_ice_hook::{closure#0}>>::{closure#0}
  11:     0x737f0b78d59f - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hce7569f4ca5d1b64
                               at /rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library/alloc/src/boxed.rs:2084:9
  12:     0x737f0b78d59f - std::panicking::rust_panic_with_hook::hfe205f6954b2c97b
                               at /rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library/std/src/panicking.rs:808:13
  13:     0x737f0b78d1c7 - std::panicking::begin_panic_handler::{{closure}}::h6cb44b3a50f28c44
                               at /rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library/std/src/panicking.rs:674:13
  14:     0x737f0b78a8a9 - std::sys::backtrace::__rust_end_short_backtrace::hf1c1f2a92799bb0e
                               at /rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library/std/src/sys/backtrace.rs:168:18
  15:     0x737f0b78ce54 - rust_begin_unwind
                               at /rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library/std/src/panicking.rs:665:5
  16:     0x737f0b7d64a3 - core::panicking::panic_fmt::h3d8fc78294164da7
                               at /rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library/core/src/panicking.rs:74:14
  17:     0x737f0b7d69ae - core::panicking::assert_failed_inner::h19a8ffbd06abbe27
                               at /rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library/core/src/panicking.rs:410:17
  18:     0x737f0842ed17 - core[3cad2706d8bdcdc4]::panicking::assert_failed::<u128, u128>
  19:     0x737f0a4ee143 - <rustc_middle[ba2289ab3ae064d4]::query::on_disk_cache::OnDiskCache>::new
  20:     0x737f0a27c6b6 - rustc_incremental[cb93a23d220c04fe]::persist::load::load_query_result_cache
  21:     0x737f0a27d569 - <rustc_interface[53a414ae04dc6ffb]::queries::Queries>::global_ctxt
  22:     0x737f0a12bf3f - rustc_interface[53a414ae04dc6ffb]::interface::run_compiler::<core[3cad2706d8bdcdc4]::result::Result<(), rustc_span[28a649581f99a5bd]::ErrorGuaranteed>, rustc_driver_impl[8683aa37472b7dde]::run_compiler::{closure#0}>::{closure#1}
  23:     0x737f0a07395b - std[1f2242ed6435445e]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[53a414ae04dc6ffb]::util::run_in_thread_with_globals<rustc_interface[53a414ae04dc6ffb]::interface::run_compiler<core[3cad2706d8bdcdc4]::result::Result<(), rustc_span[28a649581f99a5bd]::ErrorGuaranteed>, rustc_driver_impl[8683aa37472b7dde]::run_compiler::{closure#0}>::{closure#1}, core[3cad2706d8bdcdc4]::result::Result<(), rustc_span[28a649581f99a5bd]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[3cad2706d8bdcdc4]::result::Result<(), rustc_span[28a649581f99a5bd]::ErrorGuaranteed>>
  24:     0x737f0a07372a - <<std[1f2242ed6435445e]::thread::Builder>::spawn_unchecked_<rustc_interface[53a414ae04dc6ffb]::util::run_in_thread_with_globals<rustc_interface[53a414ae04dc6ffb]::interface::run_compiler<core[3cad2706d8bdcdc4]::result::Result<(), rustc_span[28a649581f99a5bd]::ErrorGuaranteed>, rustc_driver_impl[8683aa37472b7dde]::run_compiler::{closure#0}>::{closure#1}, core[3cad2706d8bdcdc4]::result::Result<(), rustc_span[28a649581f99a5bd]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[3cad2706d8bdcdc4]::result::Result<(), rustc_span[28a649581f99a5bd]::ErrorGuaranteed>>::{closure#1} as core[3cad2706d8bdcdc4]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  25:     0x737f0b7975fb - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::ha1963004222e7822
                               at /rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library/alloc/src/boxed.rs:2070:9
  26:     0x737f0b7975fb - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h1086ced1f7c494c2
                               at /rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library/alloc/src/boxed.rs:2070:9
  27:     0x737f0b7975fb - std::sys::pal::unix::thread::Thread::new::thread_start::ha8af9c992ef0b208
                               at /rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library/std/src/sys/pal/unix/thread.rs:108:17
  28:     0x737f04894ac3 - start_thread
                               at ./nptl/pthread_create.c:442:8
  29:     0x737f04926850 - __GI___clone3
                               at ./misc/../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
  30:                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: rustc 1.81.0 (eeb90cda1 2024-09-04) running on x86_64-unknown-linux-gnu

note: compiler flags: --crate-type lib -C embed-bitcode=no -C debuginfo=2 -C linker=/usr/bin/clang -C incremental=[REDACTED] -C link-arg=-fuse-ld=lld

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

query stack during panic:
end of query stack

Backtrace

<backtrace>

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First steps

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Research direction

Reproduce the panic from the code linked in commit f949012b404c97435d73c6bbae2cdd69f371ceec with rustc 1.81.0, then inspect compiler/rustc_middle/src/query/on_disk_cache.rs:520 and the incremental-compilation query stack. Done means reducing the trigger and preventing this internal compiler error for the supplied case.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
compilers
Issue type
Bug
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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