Avoid unwrap in file finder

[ConradIrwin]

Release Notes:

• Fixed a (rare) panic in file finder

[mattrobenolt]

I just came across this tracking down this crash. I get this extremely consistently in 0.154.2 and it's extremely simply in one of my projects to reproduce.

I'm not sure the release process, but it'd be great to get this into 0.154.3 since this has basically completely broken Cmd+P for me. :)

I doubt this isn't something you're unaware of, but here's the full stacktrace for posterity and to help others potentially find this:

{
  "thread": "main",
  "payload": "candidate info not found",
  "location_data": {
    "file": "crates/file_finder/src/file_finder.rs",
    "line": 417
  },
  "backtrace": [
    "<backtrace::capture::Backtrace>::create",
    "<backtrace::capture::Backtrace>::new",
    "zed::reliability::init_panic_hook::{closure#0}",
    "std::panicking::rust_panic_with_hook",
    "std::panicking::begin_panic_handler::{{closure}}",
    "std::sys::backtrace::__rust_end_short_backtrace",
    "_rust_begin_unwind",
    "core::panicking::panic_fmt",
    "core::option::expect_failed",
    "file_finder::matching_history_items::<&alloc::vec::Vec<file_finder::FoundPath>>",
    "<file_finder::FileFinderDelegate>::spawn_search::{closure#2}::{closure#0}",
    "<async_task::raw::RawTask<<async_task::runnable::Builder<_>>::spawn_local::Checked<core::pi
n::Pin<alloc::boxed::Box<dyn core::future::future::Future<Output = ()>>>>, (), <gpui::executor::
ForegroundExecutor>::spawn::inner<()>::{closure#0}, ()>>::run",
    "gpui::platform::mac::dispatcher::trampoline",
    "<gpui::platform::mac::platform::MacPlatform as gpui::platform::Platform>::run",
    "<gpui::app::App>::run::<zed::main::{closure#5}>",
    "zed::main",
    "std::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>",
    "std::rt::lang_start::<()>::{closure#0}",
    "std::rt::lang_start_internal",
    "_main"
  ],
  "app_version": "0.154.2",
  "release_channel": "Zed",
  "os_name": "macOS",
  "os_version": "15.0.0",
  "architecture": "aarch64",
  "panicked_on": 1727410960186,
  "system_id": "620baf89-3bab-43d0-a0bd-b6dcd0cc722b",
  "installation_id": "d4c39ede-73ae-4dcc-8137-2caa5abee571",
  "session_id": "2dd3cc92-cdba-401f-a790-e67d018159e5"
}

[SomeoneToIgnore]

Sounds very sad, sorry for spoiling this.

Will pick the code for the new release, but no promises when that gets released — I'll wait for more fixes just in case something appears by the end of the day.

[mattrobenolt]

0.154.3 has been stable so far! Thank you. <3