Cargo Features

win9x-sync has no features set by default.

[dependencies]
win9x-sync = { version = "0.2.0", features = ["rustc-dep-of-std"] }
rustc-dep-of-std = core

Enables rustc-dep-of-std of compiler_builtins and vc6-sys

compiler_builtins:

Only used in the compiler's build system

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

For more information on these dependencies see rust-lang/rust"s src/tools/rustc-std-workspace folder

compiler_builtins rustc-dep-of-std?