https://crates.io/crates/opentelemetry-jaeger has been deprecated for a long time.

Its removal occurred in open-telemetry/opentelemetry-rust#1782 , merged 19 May 2024.

As a result it is now unmaintained.

There is a lot of information on the crate readme about how users should migrate to replacement crates. IMO some of that should be in the advisory.