Lib.rs

Cargo Features

[dependencies]
json_io = { version = "0.3.0", default-features = false, features = ["rustc_serialization", "serde_serialization"] }

default = serde_serialization

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

rustc_serialization = rustc-serialize

serde_serialization default = serde, serde_json

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.

rustc-serialize rustc_serialization?

serde serde_serialization

Enables serde ^0.9

serde_json serde_serialization

Enables serde_json ^0.9