Ignore: Panic occur when use walk with walkbuilder set both min_depth and max_path to some(1) and visit the system root_path

[whihig]

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• I have a different issue.

What version of ripgrep are you using?

ignore: 0.4.25
rust version: 1.94.0 (4a4ef493e 2026-03-02) (via rustc --version)

How did you install ripgrep?

cargo add ignore

What operating system are you using ripgrep on?

Windows11

Describe your bug.

I want to use the ignore crate to retrieve information about files in a specified directory while excluding the directory itself. To achieve this, I set both min_depth and max_depth to Some(1). However, a panic occurred when accessing the root directory.

What are the steps to reproduce the behavior?

On Windows11

mod test {
    use ignore::WalkBuilder;

    #[test]
    fn test_ignore_current_path() {
        let walk = WalkBuilder::new("C:\\").min_depth(Some(1)).max_depth(Some(1)).build();
        walk.into_iter().for_each(|entry| {
            println!("{:?}", entry);
        });
    }
}

On ArchLinux(WSL)

use ignore::WalkBuilder;
fn main() {
    let walk = WalkBuilder::new("/")
        .min_depth(Some(1))
        .max_depth(Some(1))
        .build();
    walk.into_iter().for_each(|entry| {
        println!("{:?}", entry);
    });
}

What is the actual behavior?

Here is the panic infomation when run on ArchLinux(WSL)

What is the expected behavior?

I haven't looked at the specific usage of self.ig; maybe it needs to be changed to the type Option?