Minor lints

Author: maneatingape

Cargo.toml

@@ -13,6 +13,7 @@ private_intra_doc_links = "allow"
 [lints.rust]
 absolute_paths_not_starting_with_crate = "warn"
 box_pointers = "warn"
+dead_code = "warn"
 elided_lifetimes_in_paths = "warn"
 explicit_outlives_requirements = "warn"
 ffi_unwind_calls = "warn"
@@ -37,7 +38,6 @@ unused_import_braces = "warn"
 unused_lifetimes = "warn"
 unused_macro_rules = "warn"
 unused_qualifications = "warn"
-unused_tuple_struct_fields = "warn"
 variant_size_differences = "warn"
 
 [lints.clippy]

src/util/integer.rs

@@ -1,6 +1,5 @@
 //! Combines common [operators](https://doc.rust-lang.org/book/appendix-02-operators.html)
 //! and constants `0`, `1` and `10` to enable generic methods on integer types.
-use std::cmp::{PartialEq, PartialOrd};
 use std::ops::{Add, BitAnd, BitOr, Div, Mul, Neg, Rem, Shl, Shr, Sub};
 
 pub trait Integer<T>:

src/year2019/day25.rs

@@ -170,7 +170,7 @@ fn explore(
 
     for line in output.lines() {
         if line.starts_with("== Pressure-Sensitive Floor ==") {
-            *path = stack.clone();
+            path.clone_from(stack);
             return;
         } else if let Some(suffix) = line.strip_prefix("- ") {
             if opposite(suffix) == "none" {