Cargo Features

[dependencies]
ninja-writer = { version = "0.3.0", default-features = false, features = ["std", "thread-safe"] }
default = std

The std feature is set by default whenever ninja-writer is added without default-features = false somewhere in the dependency tree.

std default thread-safe?
thread-safe = std

Affects util::RefCounted, util::VecInnerGuard