Cargo Features

rustc-demangle has no features set by default.

rustc-demangle = { version = "0.1.24", features = ["std", "rustc-dep-of-std"] }

Affects rustc-demangle::demangle_stream

rustc-dep-of-std = compiler_builtins, core

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.

core rustc-dep-of-std?

Enables rustc-std-workspace-core

compiler_builtins rustc-dep-of-std?