Currently, Vector releases "limited" versions on select targets, such as x86_64-unknown-linux-musl. This is due to the fact that we have been unable to compile and statically links the leveldb and rdkafka libraries. Vector uses leveldb for on-disk buffering and rdkafka for the kafka sink.

As a short term solution we've hidden these features behind cargo feature flags, enabling the ability to build Vector without these features, which in return allow Vector to compile successfully:

cargo build --no-default-features

This, obviously, is not ideal and is something we should resolve. A few ideas:

1. Work on compiling and linking these libraries in the problematic targets.
2. Move off of these libraries and replace them with Rust native libraries that do not require external dependencies.