Cargo Features

[dependencies]
srv-rs = { version = "0.2.0", default-features = false, features = ["libresolv", "log", "trust-dns"] }
default = log

The log feature is set by default whenever srv-rs is added without default-features = false somewhere in the dependency tree.

libresolv = libresolv-sys

Affects resolver::libresolv

log default = tracing
trust-dns = trust-dns-resolver

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.

libresolv-sys libresolv?

Enables libresolv-sys ^0.2

tracing log
trust-dns-resolver trust-dns?

Enables trust-dns-resolver ^0.19