Cargo Features

[dependencies]
retry-predicate = { version = "0.1.0", default-features = false, features = ["std", "alloc"] }
default = std

The std feature is set by default whenever retry-predicate is added without default-features = false somewhere in the dependency tree.

std default = alloc
alloc std

RetryPredicate has 3 features without comments.

Features from optional dependencies

predicates