Cargo Features

lalrpop = { version = "0.20.0", default-features = false, features = ["unicode", "lexer", "pico-args"] }
default = lexer, pico-args, unicode

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

unicode default

Enables unicode of regex and regex-syntax ^0.7

lexer default

Enables lexer of lalrpop-util

Features from optional dependencies

pico-args default

Required by the lalrpop binary