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rustc segfaults when evaluating certain recursive trait implementations #108499

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JackStade opened this issue Feb 26, 2023 · 1 comment
Open

rustc segfaults when evaluating certain recursive trait implementations #108499

JackStade opened this issue Feb 26, 2023 · 1 comment
Labels
C-bug Category: This is a bug. I-crash Issue: The compiler crashes (SIGSEGV, SIGABRT, etc). Use I-ICE instead when the compiler panics. S-bug-has-test Status: This bug is tracked inside the repo by a `known-bug` test. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.

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@JackStade
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Code

// at lower recursion limits the recursion limit is reached before the bug happens
#![recursion_limit = "2000"]

// this will try to calculate 3↑↑3=3^(3^3)
type Test = <() as Op<((), ()), [[[(); 0]; 0]; 0], [[[(); 0]; 0]; 0], [[[[(); 0]; 0]; 0]; 0]>>::Result;

use std::default::Default;

fn main() {
    // force the compiler to actually evaluate `Test`
    println!("{}", Test::default());
}

trait Op<X, A, B, C> {
    type Result;
}

// this recursive function defines the hyperoperation sequence,
// a canonical example of the type of recursion which produces the issue
// the problem seems to be caused by having two recursive calls, the second
// of which depending on the first
impl<
    X: Op<(X, Y), A, [B; 0], [C; 0]>,
    Y: Op<(X, Y), A, X::Result, C>,
    A, B, C,
> Op<(X, Y), A, [[B; 0]; 0], [C; 0]> for () {
    type Result = Y::Result;
}

// base cases
impl<X, A, B> Op<X, A, B, ()> for () {
    type Result = [B; 0];
}

impl<X, A> Op<X, A, [(); 0], [(); 0]> for () {
    type Result = [A; 0];
}

impl<X, A, C> Op<X, A, [(); 0], [[C; 0]; 0]> for () {
    type Result = A;
}

This is the simplest example I could find where the trait could evaluation could actually finish in theory. A simpler example which would loop infinitely is this:

#![recursion_limit = "2000"]

trait Foo<X, A, B> {
    type Result;
}

impl<
    X: Foo<(X, Y), ((A, B), C), D>, 
    Y: Foo<(X, Y), X::Result, (B, (C, D))>, 
    A, B, C, D,
> Foo<(X, Y), (A, B), (C, D)> for () {
    type Result = Y::Result;
}

impl<X, A, B> Foo<X, (A, B), ()> for () {
    type Result = (A, B);
}

impl<X, A, B> Foo<X, (), (A, B)> for () {
    type Result = (A, B);
}

// This should cause an infinite loop which gets stopped by the recursion limit
// but if the recursion limit is increased enough (~1800) then it segfaults instead
// This happens almost immediately and the compiler uses only a small amount of memory before crashing
type Test = <() as Foo<((), ()), ((), ()), ((), ())>>::Result;

use std::default::Default;

fn main() {
    println!("{}", Test::default());
}

This uses much less time and memory before crashing compared to the hyperoperation sequence example.

Meta

The bug also exists on nightly and beta, although the recursion limit needed is higher in beta.
rustc --version --verbose:

rustc 1.67.1 (d5a82bbd2 2023-02-07)
binary: rustc
commit-hash: d5a82bbd26e1ad8b7401f6a718a9c57c96905483
commit-date: 2023-02-07
host: x86_64-unknown-linux-gnu
release: 1.67.1
LLVM version: 15.0.6

Error output

process didn't exit successfully: `rustc --crate-name crashtest --edition=2021 src/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 -C metadata=90a792334d50a64a -C extra-filename=-90a792334d50a64a --out-dir /home/ystem/crashtest/target/debug/deps -C incremental=/home/ystem/crashtest/target/debug/incremental -L dependency=/home/ystem/crashtest/target/debug/deps` (signal: 11, SIGSEGV: invalid memory reference)
Full error output 

/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x325f1a3)[0x7f8ca2db81a3]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x14420)[0x7f8c9f97d420]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x1273624)[0x7f8ca0dcc624]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
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/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(+0x12769e6)[0x7f8ca0dcf9e6]
/home/ystem/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-710574fabae712f8.so(_RNvXs0_NtNtCshIestXGVLTX_11rustc_infer5infer7combineNtB5_11GeneralizerNtNtNtCsbkufGAGM93t_12rustc_middle2ty6relate12TypeRelation3tys+0x140)[0x7f8ca0dd5f00]
error: could not compile `crashtest`

Caused by:
  process didn't exit successfully: `rustc --crate-name crashtest --edition=2021 src/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 -C metadata=90a792334d50a64a -C extra-filename=-90a792334d50a64a --out-dir /home/ystem/crashtest/target/debug/deps -C incremental=/home/ystem/crashtest/target/debug/incremental -L dependency=/home/ystem/crashtest/target/debug/deps` (signal: 11, SIGSEGV: invalid memory reference)

@JackStade JackStade added C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels Feb 26, 2023
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might be related to #107362

@Noratrieb Noratrieb added I-crash Issue: The compiler crashes (SIGSEGV, SIGABRT, etc). Use I-ICE instead when the compiler panics. and removed I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ labels Feb 26, 2023
@matthiaskrgr matthiaskrgr added the S-bug-has-test Status: This bug is tracked inside the repo by a `known-bug` test. label Apr 19, 2024
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C-bug Category: This is a bug. I-crash Issue: The compiler crashes (SIGSEGV, SIGABRT, etc). Use I-ICE instead when the compiler panics. S-bug-has-test Status: This bug is tracked inside the repo by a `known-bug` test. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
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