Mitra has arrayref in its dependency tree but it is pinned to an old version.

Rust Language@rust@social.rust-lang.org

⚠️ A few hours ago, a malicious crate was discovered on crates.​io which spread as a dependency of `arrayref` and some other crates, likely due to compromised credentials. The affected versions have been deleted.

For details and how to see if you are impacted, see: blog.rust-lang.org/2026/08/20/