Cargo Features

[dependencies]
ussr-nbt = { version = "0.2.1", default-features = false, features = ["rt_cpu_feat"] }
default = rt_cpu_feat

The rt_cpu_feat feature is set by default whenever ussr-nbt is added without default-features = false somewhere in the dependency tree.

rt_cpu_feat default

ussr-nbt has 2 features without comments.