Language server keeps crashing

[RalfJung]

I keep getting this error in the logs when working on Miri -- this just started today, no idea what went wrong:

thread 'LspServer' panicked at 'index out of bounds: the len is 410 but the index is 428', crates/project-model/src/workspace.rs:857:29
stack backtrace:
   0: rust_begin_unwind
             at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:584:5
   1: core::panicking::panic_fmt
             at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/panicking.rs:142:14
   2: core::panicking::panic_bounds_check
             at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/panicking.rs:84:5
   3: project_model::workspace::ProjectWorkspace::to_crate_graph
   4: rust_analyzer::reload::<impl rust_analyzer::global_state::GlobalState>::switch_workspaces
   5: rust_analyzer::main_loop::<impl rust_analyzer::global_state::GlobalState>::handle_task
   6: rust_analyzer::main_loop::<impl rust_analyzer::global_state::GlobalState>::handle_event
   7: rust_analyzer::main_loop::<impl rust_analyzer::global_state::GlobalState>::run
   8: rust_analyzer::main_loop::main_loop
   9: rust_analyzer::run_server
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
thread '<unnamed>' panicked at 'called `Result::unwrap()` on an `Err` value: "SendError(..)"', lib/lsp-server/src/stdio.rs:29:37
stack backtrace:
   0: rust_begin_unwind
             at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:584:5
   1: core::panicking::panic_fmt
             at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/panicking.rs:142:14
   2: core::result::unwrap_failed
             at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/result.rs:1814:5
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
[Info  - 10:33:47 AM] Connection to server got closed. Server will restart.
thread 'LspServer' panicked at 'index out of bounds: the len is 410 but the index is 428', crates/project-model/src/workspace.rs:857:29
stack backtrace:
   0: rust_begin_unwind
             at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:584:5
   1: core::panicking::panic_fmt
             at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/panicking.rs:142:14
   2: core::panicking::panic_bounds_check
             at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/panicking.rs:84:5
   3: project_model::workspace::ProjectWorkspace::to_crate_graph
   4: rust_analyzer::reload::<impl rust_analyzer::global_state::GlobalState>::switch_workspaces
   5: rust_analyzer::main_loop::<impl rust_analyzer::global_state::GlobalState>::handle_task
   6: rust_analyzer::main_loop::<impl rust_analyzer::global_state::GlobalState>::handle_event
   7: rust_analyzer::main_loop::<impl rust_analyzer::global_state::GlobalState>::run
   8: rust_analyzer::main_loop::main_loop
   9: rust_analyzer::run_server
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
thread '<unnamed>' panicked at 'called `Result::unwrap()` on an `Err` value: "SendError(..)"', lib/lsp-server/src/stdio.rs:29:37
stack backtrace:
   0: rust_begin_unwind
             at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:584:5
   1: core::panicking::panic_fmt
             at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/panicking.rs:142:14
   2: core::result::unwrap_failed
             at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/result.rs:1814:5
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
[Info  - 10:33:49 AM] Connection to server got closed. Server will restart.

rust-analyzer version: rust-analyzer version: 0.3.1229-standalone

rustc version: rustc 1.66.0-nightly (744e397d8 2022-10-01)

relevant settings:

    "rust-analyzer.rustc.source": "discover",
    "rust-analyzer.linkedProjects": [
        "./Cargo.toml",
        "./cargo-miri/Cargo.toml"
    ],
    "rust-analyzer.checkOnSave.overrideCommand": [
        "./miri",
        "cargo",
        "clippy",
        "--message-format=json"
    ],
    // Contrary to what the name suggests, this also affects proc macros.
    "rust-analyzer.cargo.buildScripts.overrideCommand": [
        "./miri",
        "cargo",
        "check",
        "--message-format=json",
    ],

global settings:

    "rust-analyzer.lens.enable": false,
    "rust-analyzer.cargo.buildScripts.useRustcWrapper": false,
    "rust-analyzer.cargo.buildScripts.enable": false,
    "rust-analyzer.procMacro.enable": false,
    //
    "rust-analyzer.diagnostics.disabled": [
        "unlinked-file", // I guess for "normal" projects unlinked files are strange, for me they are common
        "unresolved-module", // https://github.com/rust-lang/rust-analyzer/issues/9173
        "unresolved-extern-crate", // https://github.com/rust-lang/rust-analyzer/issues/12926
        "type-mismatch", // https://github.com/rust-lang/rust-analyzer/issues/1109
    ],

[lnicola]

Probably a dupe of #13340.

[RalfJung]

Sounds likely.

Can I somehow get a working RA without waiting for that fix to ship?

[Veykril]

I kicked off a nightly release https://github.com/rust-lang/rust-analyzer/actions/runs/3180665075

Otherwise you can downgrade to the previous stable, or a nightly from ~4 days ago in VSCode by clicking on the Uninstall down arrow

[RalfJung]

Downgrading to a previous stable version worked, thanks a lot. :)

[Veykril]

Meanwhile nightly releases are failing still
Edit: Another chalk panic, only happening on analysis-stats for sdt it seems?