Panic in cursor.rs

[the80srobot]

It looks like rust-analyzer can panic on IO, but I'm having a hard time reproducing it. Vaguely looks like a race condition, because it happens sometimes when I delete a many lines at once (20-50).

rust-analyzer version: 5d5bbec 2022-05-09 stable

rustc version: (eg. output of rustc -V) rustc 1.60.0 (7737e0b5c 2022-04-04)

relevant settings: (eg. client settings, or environment variables like CARGO, RUSTUP_HOME or CARGO_HOME)

Default settings from the VSCode extension. VSCode version:

Version: 1.67.1 (Universal)
Commit: da15b6fd3ef856477bf6f4fb29ba1b7af717770d
Date: 2022-05-06T12:37:16.526Z (5 days ago)
Electron: 17.4.1
Chromium: 98.0.4758.141
Node.js: 16.13.0
V8: 9.8.177.13-electron.0
OS: Darwin arm64 21.3.0

Full output:

Panic context:
> 
version: 5d5bbec9b 2022-05-09 stable
request: codeLens/resolve CodeLens {
    range: Range {
        start: Position {
            line: 18,
            character: 7,
        },
        end: Position {
            line: 18,
            character: 13,
        },
    },
    command: None,
    data: Some(
        Object({
            "impls": Object({
                "textDocument": Object({
                    "uri": String(
                        "file:///Users/adam/astro/src/geometry/octree.rs",
                    ),
                }),
                "position": Object({
                    "line": Number(
                        18,
                    ),
                    "character": Number(
                        7,
                    ),
                }),
            }),
        }),
    ),
}

thread '<unnamed>' panicked at 'Bad offset: range 0..361 offset 368', /Users/runner/.cargo/registry/src/github.com-1ecc6299db9ec823/rowan-0.15.4/src/cursor.rs:751:9
stack backtrace:
   0: _rust_begin_unwind
   1: core::panicking::panic_fmt
   2: rowan::cursor::SyntaxNode::token_at_offset
   3: ide::goto_implementation::goto_implementation
   4: ide::annotations::resolve_annotation
   5: std::panicking::try
   6: rust_analyzer::handlers::handle_code_lens_resolve
   7: std::panicking::try
   8: <F as threadpool::FnBox>::call_box
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
[Error - 9:23:45 AM] Request codeLens/resolve failed.
  Message: request handler panicked: Bad offset: range 0..361 offset 368
  Code: -32603 

[Veykril]

This is difficult to trace down, but I think #12224 should've fixed this. I'll close this for now, if it pops up again feel free to re-open this or as a new issue.