Awesome
PMTiles (for Rust) 
This crate includes a low level implementation of the PMTiles format based on the standard Read and Write (or AsyncRead and AsyncWrite from the futures-crate) traits.
It also contains some utilities, which might become handy when working with PMTiles archives. Among others these include functions for (de-)compression with all algorithms supported by PMTiles, as well as functions to convert from and to tile ids.
Documentation
The documentation includes some examples.
Installation
Add following lines to your Cargo.toml:
# Cargo.toml
[dependencies]
pmtiles2 = "0.3"
Features
serde
With this feature enabled most public types are (de-)serializable by serde.
async
With this feature enabled all readable / writable types also support asynchronous readers / writers via the AsyncRead and AsyncWrite traits from the futures-crate.