Cargo Features

swym has no features set by default.

[dependencies]
swym = { version = "0.1.0-preview", features = ["debug-alloc", "stats"] }
debug-alloc

Affects alloc::DefaultAlloc

stats = lazy_static

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.

lazy_static stats?