Cargo Features

[dependencies]
iso-rs = { version = "0.1.4", default-features = false, features = ["all", "from_alpha_3", "from_regions"] }
default = all

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

all default = from_alpha_2, from_alpha_3, from_capitals, from_regions
from_capitals from_alpha_2 from_alpha_3 all
from_regions all

ISO-rs has 4 features without comments.