Cargo Features

gloo-timers has no features set by default.

gloo-timers = { version = "0.3.0", features = ["futures"] }
futures = futures-channel, futures-core

Affects gloo-timers::future

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.

futures-core futures?
futures-channel futures?