Cargo Features

[dependencies]
sovereign-rs = { version = "0.1.10", default-features = false, features = ["s3"] }
default = s3

The s3 feature is set by default whenever sovereign-rs is added without default-features = false somewhere in the dependency tree.

s3 default = rusoto_core, rusoto_s3

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

rusoto_s3 s3
rusoto_core s3