Cargo Features

[dependencies]
m3u8-rs = { version = "6.0.0", default-features = false, features = ["parser"] }
default = parser

The parser feature is set by default whenever m3u8-rs is added without default-features = false somewhere in the dependency tree.

parser default = nom

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.

nom parser