Cargo Features

[dependencies]
sysinfo-web = { version = "0.1.2", default-features = false, features = ["gzip"] }
default = gzip

The gzip feature is set by default whenever sysinfo-web is added without default-features = false somewhere in the dependency tree.

gzip default = flate2

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.

flate2 gzip