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ICE: <code>assertion failed: bpos.to_u32() &gt;= mbc.pos.to_u32() + mbc.bytes as u32'</code>

A-borrow-checkerArea: The borrow checkerArea: The borrow checker

A-error-handlingArea: Error handlingArea: Error handling

A-frontendArea: Compiler frontend (errors, parsing and HIR)Area: Compiler frontend (errors, parsing and HIR)

A-parserArea: The lexing & parsing of Rust source code to an ASTArea: The lexing & parsing of Rust source code to an AST

C-bugCategory: This is a bug.Category: This is a bug.

I-ICEIssue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️

S-bug-has-testStatus: This bug is tracked inside the repo by a `known-bug` test.Status: This bug is tracked inside the repo by a `known-bug` test.

S-has-bisectionStatus: A bisection has been found for this issueStatus: A bisection has been found for this issue

S-has-mcveStatus: A Minimal Complete and Verifiable Example has been found for this issueStatus: A Minimal Complete and Verifiable Example has been found for this issue

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#139089 In rust-lang/rust;

· matthiaskrgr opened on Mar 28, 2025

When a <code>proc_macro</code> has a stack overflow, rustc crashes and errors confusingly

A-error-handlingArea: Error handlingArea: Error handling

A-proc-macrosArea: Procedural macrosArea: Procedural macros

C-bugCategory: This is a bug.Category: This is a bug.

I-crashIssue: The compiler crashes (SIGSEGV, SIGABRT, etc). Use I-ICE instead when the compiler panics.Issue: The compiler crashes (SIGSEGV, SIGABRT, etc). Use I-ICE instead when the compiler panics.

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#118701 In rust-lang/rust;

· PizzasBear opened on Dec 7, 2023

ICE abort due to nested panic while panic-unwinding inside a proc-macro

A-error-handlingArea: Error handlingArea: Error handling

A-proc-macrosArea: Procedural macrosArea: Procedural macros

C-bugCategory: This is a bug.Category: This is a bug.

glacierICE tracked in rust-lang/glacier.ICE tracked in rust-lang/glacier.

I-ICEIssue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#106298 In rust-lang/rust;

· Veetaha opened on Dec 30, 2022

Add track_caller to iterator methods

A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lints

A-error-handlingArea: Error handlingArea: Error handling

A-iteratorsArea: IteratorsArea: Iterators

C-discussionCategory: Discussion or questions that doesn't represent real issues.Category: Discussion or questions that doesn't represent real issues.

T-libsRelevant to the library team, which will review and decide on the PR/issue.Relevant to the library team, which will review and decide on the PR/issue.

Status: Open.

#102024 In rust-lang/rust;

· xxchan opened on Sep 19, 2022

Error::source and Error::cause do not expose immediate error in custom io::Error

A-error-handlingArea: Error handlingArea: Error handling

C-bugCategory: This is a bug.Category: This is a bug.

T-libs-apiRelevant to the library API team, which will review and decide on the PR/issue.Relevant to the library API team, which will review and decide on the PR/issue.

Status: Open.

#101817 In rust-lang/rust;

· jonhoo opened on Sep 14, 2022

Make rustc gracefully handle "too many open files"

A-error-handlingArea: Error handlingArea: Error handling

C-bugCategory: This is a bug.Category: This is a bug.

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#97234 In rust-lang/rust;

· TheButlah opened on May 20, 2022

<code>Location</code> is missing the function name

A-error-handlingArea: Error handlingArea: Error handling

C-enhancementCategory: An issue proposing an enhancement or a PR with one.Category: An issue proposing an enhancement or a PR with one.

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#95529 In rust-lang/rust;

· schreter opened on Mar 31, 2022

stdlib makes assumptions about errors returned by POSIX functions

A-concurrencyArea: ConcurrencyArea: Concurrency

A-error-handlingArea: Error handlingArea: Error handling

T-libsRelevant to the library team, which will review and decide on the PR/issue.Relevant to the library team, which will review and decide on the PR/issue.

Status: Open.

#94705 In rust-lang/rust;

· tavianator opened on Mar 7, 2022

rustc build artifacts should contain checksum to pervent unrelated ICEs / miscompiles / etc

A-error-handlingArea: Error handlingArea: Error handling

A-incr-compArea: Incremental compilationArea: Incremental compilation

C-bugCategory: This is a bug.Category: This is a bug.

I-ICEIssue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#94051 In rust-lang/rust;

· klensy opened on Feb 16, 2022

Can't fail a test with my custom error message without the panic boilerplate

A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lints

A-error-handlingArea: Error handlingArea: Error handling

A-libtestArea: `#[test]` / the `test` libraryArea: `#[test]` / the `test` library

C-bugCategory: This is a bug.Category: This is a bug.

T-testing-devexRelevant to the testing devex team (testing DX), which will review and decide on the PR/issue.Relevant to the testing devex team (testing DX), which will review and decide on the PR/issue.

Status: Open.

#89398 In rust-lang/rust;

· imsnif opened on Sep 30, 2021

Tracking Issue for io_error_more

A-error-handlingArea: Error handlingArea: Error handling

A-ioArea: `std::io`, `std::fs`, `std::net` and `std::path`Area: `std::io`, `std::fs`, `std::net` and `std::path`

C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCCategory: An issue tracking the progress of sth. like the implementation of an RFC

disposition-mergeThis issue / PR is in PFCP or FCP with a disposition to merge it.This issue / PR is in PFCP or FCP with a disposition to merge it.

finished-final-comment-periodThe final comment period is finished for this PR / Issue.The final comment period is finished for this PR / Issue.

T-libs-apiRelevant to the library API team, which will review and decide on the PR/issue.Relevant to the library API team, which will review and decide on the PR/issue.

Status: Open.

#86442 In rust-lang/rust;

· ijackson opened on Jun 18, 2021

Tracking Issue for ExitStatusError

A-error-handlingArea: Error handlingArea: Error handling

C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCCategory: An issue tracking the progress of sth. like the implementation of an RFC

PG-error-handlingProject group: Error handling (https://github.com/rust-lang/project-error-handling)Project group: Error handling (https://github.com/rust-lang/project-error-handling)

T-libs-apiRelevant to the library API team, which will review and decide on the PR/issue.Relevant to the library API team, which will review and decide on the PR/issue.

Status: Open.

#84908 In rust-lang/rust;

· ijackson opened on May 4, 2021