• dead_code is already contained in unused (see https://doc.rust-lang.org/rustc/lints/groups.html), so we can remove it.
• elided_lifetimes_in_paths is already contained in rust_2018_idioms.
• single_use_lifetimes makes it very hard to use Higher-Rank Trait Bounds (i.e. for<'a> SomeTrait<'a>), so it seems to be very noisy.

ninja check-bitcoinsuite