Cargo Features

[dependencies]
filesync = { version = "0.1.2", default-features = false, features = ["s3", "s3_integration_test"] }
default = s3

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

s3 default s3_integration_test? = aws-sdk-s3

Affects filesync::s3

s3_integration_test = 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.

aws-sdk-s3 s3

Enables aws-sdk-s3 ^0.29