[Bug]: Rustfmt check doesn't work with v2.0

### What happened?

Running `bazel run //:format.check` with Rust enabled in the repository doesn't work on latest version (2.0.0-rc0):

```
Formatting Rust with rustfmt...
Loading: 0 packages loaded
ERROR: Error while parsing 'let scope = set(--check [a bunch of files listed])': syntax error at '- - check'
Failed to perform `bazel query` command.
Formatted Rust in 0m0.185s
```

### Version

Development (host) and target OS/architectures:

Output of `bazel --version`: 8.2.1

Version of the Aspect rules, or other relevant rules from your
`WORKSPACE` or `MODULE.bazel` file: 2.0.0-rc0

Language(s) and/or frameworks involved:
Rust (with rules_rust)

### How to reproduce

```shell
Try using rustfmt in checking mode through aspect_rules_lint.
```

### Any other information?

I have removed some specifics from the error to hide some company IP. Please let me know if there's something else missing that you need!

Start by reproducing the failure with `bazel run //:format.check` using Rust enabled and the reported rules version 2.0.0-rc0. Trace the `format.check` path in aspect_rules_lint and compare its handling of rustfmt checking mode with the Bazel 8.2.1 error; done means the command completes successfully and reports Rust formatting correctly.

Written by the indexing model from the issue text.