Cargo Features

xmltree-parse_with_config has no features set by default.

[dependencies]
xmltree-parse_with_config = { version = "0.10.3", features = ["attribute-order", "attribute-sorted"] }
attribute-order = indexmap
attribute-sorted

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.

indexmap attribute-order?

Enables indexmap ^1.4.0