PSA: if you need your Rust code to interact with AWS S3, you probably can get away with the lighter https://crates.io/crates/object-store instead aws-sdk-s3
@fasterthanlime one of the bits of .. somewhat complex behaviour this chooses not to implement is all the IMDS, profiles, and so on, that people often expect from AWS SDK using things. that being said all that shit is very complicated. but it's the reason we've not ripped the aws sdk for c++ out of lix so far.
@fasterthanlime can recommend. We made it at InfluxData originally for our own needs before moving it into Datafusion/Arrow and so it's actively maintained among other things.