Crash on hovering over error

[tinfoil-knight]

Check for existing issues

• [X] Completed

Describe the bug / provide steps to reproduce it

• Clone https://github.com/tinfoil-knight/mini-lsm/tree/zed-crash
• Go to mini-lsm-starter/src/lsm-storage.rs
• Hover over the iters word in line 378 which has some long Rust type error
• Zed crashes

Aside:

• I can see the error by opening the Project Diagnostics tab from the status bar. The error is long enough that the window gets stuck doesn't scroll over horizontally to show the full error. Maybe that's related to why Zed is crashing on hovering over the error in the normal. Editor view.

Here are my Zed settings:

local settings

{
  "collaboration_panel": {
    "dock": "right"
  },
  "features": {
    "inline_completion_provider": "none"
  },
  "project_panel": {
    "dock": "right"
  },
  "theme": "Ayu Dark",
  "buffer_font_family": "MonoLisa",
  "buffer_font_size": 14,
  "terminal": {
    "font_size": 13
  },
  "base_keymap": "VSCode",
  "git": {
    "inline_blame": {
      "enabled": false
    },
    "git_gutter": "hide"
  },
  "lsp": {
    "rust-analyzer": {
      "initialization_options": {
        "check": {
          "command": "clippy"
        }
      }
    }
  }
}

Environment

Zed: v0.147.2 (Zed) OS: macOS 14.4.1 Memory: 16 GiB Architecture: aarch64

If applicable, attach your ~/Library/Logs/Zed/Zed.log file to this issue.

Details

Zed.log

Since the log had too many characters, I've created a Gist here: https://gist.github.com/tinfoil-knight/ca51a63fb126457da788ccdad3c1f6a5#file-zed-crash-log If it helps, I've also added the log that Mac records separately on crash and added it in the gist above.

[notpeter]

Excellent reproduction steps! This reliably crashes on Zed Stable (0.147.2) and on Zed Nightly (0.149.x) on MacOS. It does not crash the minibuffer, only when hovered in the main editor:

panic

byte index 444 is out of bounds of `rustc: mismatched types
expected struct `Vec>`
   found struct `Vec`
for more on the distinction between the stack and the heap, read https://doc.rust-lang.org/book/ch15-01-box.html, https://doc.rust-lang.org/rust-by`[...]
::create
::new
zed::reliability::init_panic_hook::{closure#0}
std::panicking::rust_panic_with_hook
std::panicking::begin_panic_handler::{{closure}}
std::sys_common::backtrace::__rust_end_short_backtrace
_rust_begin_unwind
core::panicking::panic_fmt
core::str::slice_error_fail_rt
core::str::slice_error_fail
::request_layout
>::request_layout
>>::request_layout
::request_layout::{closure#0}::{closure#0}
::request_layout::<::request_layout::{closure#0}>::{closure#0}
::request_layout
>>::request_layout
::request_layout::{closure#0}::{closure#0}
::request_layout::<::request_layout::{closure#0}>::{closure#0}
::request_layout
   and 90 more

[uladkaminski]

Added PR for that issue. Let me know if any comments.

https://github.com/zed-industries/zed/pull/16132