Cargo Features

[dependencies]
arena64 = { version = "0.4.0", default-features = false, features = ["extern_crate_alloc"] }
default = extern_crate_alloc

The extern_crate_alloc feature is set by default whenever arena64 is added without default-features = false somewhere in the dependency tree.

extern_crate_alloc default = crossbeam-utils

Enable extern crate alloc

Affects arena64::arena, arena64::boxed

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.

crossbeam-utils extern_crate_alloc