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rust-debugging

Use when debugging Rust binaries with GDB or LLDB, enabling pretty-printers, interpreting panics and backtraces, debugging async with tokio-console, or stepping through no_std code.

.devin/skills/rust-debugging/SKILL.md

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Sep 28, 2026
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# Rust debugging

## Contract

| Field | Bound contract |
|---|---|
| Trigger | Debugging a Rust binary, getting backtraces, setting breakpoints, inspecting variables, debugging async tasks, or triaging panics. |
| Authority | Reversible local. Adds and removes temporary debug instrumentation in local source files and `Cargo.toml`, runs local debuggers and builds, and writes build artifacts to `target/`; rollback reverts source and configuration edits and removes build artifacts. No remote mutation. |
| Side effect | Local source edits for `dbg!`, `tracing`, `console-subscriber`, and `RUST_BACKTRACE` settings; local debug builds; debugger transcripts. |
| Done | The fault is located or the question is answered with a backtrace, breakpoint state, variable value, or async task trace. |

## Inputs

1. **Symptom** (required): the failing binary, panic message, wrong output, or hang.