error[E0658]: scoped lint `clippy::decimal_literal_representation` is experimental (see issue #44690) --> $DIR/feature-gate-tool_lints.rs:11:8 | LL | #[warn(clippy::decimal_literal_representation)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = help: add #![feature(tool_lints)] to the crate attributes to enable error: aborting due to previous error For more information about this error, try `rustc --explain E0658`.