The anymap crate does not appear to be maintained, and the most recent published version 0.12.1 includes a soundness bug. This has been fixed a few years ago, but was never released.
anymap
{ "license": "CC0-1.0" }
{ "affected_functions": null, "affects": { "os": [], "functions": [], "arch": [] } }
{ "cvss": null, "informational": "unmaintained", "categories": [] }