rules_rust crash under bazel 9

### Description of the bug:

https://github.com/patrickmscott/rules_rust_bazel9

When modifying Cargo.toml and requesting CARGO_BAZEL_REPIN=true, bazel crashes because the lockfile has been modified.

@katre

### Which category does this issue belong to?

Rules API

### What's the simplest, easiest way to reproduce this bug? Please provide a minimal example if possible.

https://github.com/patrickmscott/rules_rust_bazel9

### Which operating system are you running Bazel on?

linux

### What is the output of `bazel info release`?

release 9.0.1

### If `bazel info release` returns `development version` or `(@non-git)`, tell us how you built Bazel.

_No response_

### What's the output of `git remote get-url origin; git rev-parse HEAD` ?

```text

```

### If this is a regression, please try to identify the Bazel commit where the bug was introduced with bazelisk --bisect.

_No response_

### Have you found anything relevant by searching the web?

_No response_

### Any other information, logs, or outputs that you want to share?

_No response_