Cargo Features

[dependencies]
dns-resolver = { version = "0.2.14", default-features = false, features = ["slings-runtime", "awak-runtime", "tokio-runtime"] }
default = slings-runtime

The slings-runtime feature is set by default whenever dns-resolver is added without default-features = false somewhere in the dependency tree.

slings-runtime default = futures-util, slings
awak-runtime = awak, futures-util
tokio-runtime = tokio

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.

slings slings-runtime
awak awak-runtime?
tokio tokio-runtime?
futures-util awak-runtime? slings-runtime