Cargo Features

[dependencies]
include-flate-compress = { version = "0.3.0", default-features = false, features = ["deflate", "zstd"] }
default = deflate, zstd

These default features are set whenever include-flate-compress is added without default-features = false somewhere in the dependency tree.

deflate default

Enables libflate

zstd default

Enables zstd

include-flate-compress has 3 features without comments.