src/tools/cargo/clippy.toml

allow-print-in-tests = true
allow-dbg-in-tests = true
disallowed-methods = [
    { path = "std::env::var", reason = "use `Config::get_env` instead. See rust-lang/cargo#11588" },
    { path = "std::env::var_os", reason = "use `Config::get_env_os` instead. See rust-lang/cargo#11588" },
    { path = "std::env::vars", reason = "not recommended to use in Cargo. See rust-lang/cargo#11588" },
    { path = "std::env::vars_os", reason = "not recommended to use in Cargo. See rust-lang/cargo#11588" },
]