rustfmt on linux crashing with `ignore`

[otiv-emiel-vanseveren]

command ran:
bazel run @rules_rust//:rustfmt --@rules_rust//:rustfmt.toml=//:rustfmt.toml --output_groups=+rustfmt_checks

rustfmt.toml:
max_width = 100
imports_granularity = "Module"
group_imports = "StdExternalCrate"
ignore = ["third_party/"]

output:
rustc-ice-2024-06-05T14_37_14-130215.txt

[otiv-emiel-vanseveren]

Managed to pin it down. It is related to the ignore config opt in rustfmt.toml.

[otiv-emiel-vanseveren]

I suppose it should be part of: #3395?

[ytmimi]

@otiv-emiel-vanseveren thanks for the report. I'm personally not familiar with bazel. Is this issue reproducible without using bazel? Also, Do you have a repo you can link to that can be used to reproduce this problem?

[otiv-emiel-vanseveren]

I'll see if I can reproduce it over the weekend.

[otiv-emiel-vanseveren]

@ytmimi,

Sorry for the late response, I've been a bit busy the last couple of weeks. Here is a reproducible using bazel: https://github.com/emielvanseveren/bazel-rustfmt-ignore. I have not tried with cargo. Steps are in readme!