Cargo Features

[dependencies]
env_logger_successor = { version = "0.9.1", default-features = false, features = ["localtime", "regex", "termcolor", "humantime", "atty"] }

By default, all features are disabled unless explicitly enabled.
This can be changed by specifying the default feature.
When the package is built,
the default feature is enabled which in turn enables the listed features.

default = atty, humantime, regex, termcolor

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

localtime = chrono

local time feature.this feature will override humantime if both of them are enabled.

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.

regex default
termcolor default
humantime default
atty default
chrono localtime?

Enables chrono

optional dependency