Fix lint

Author: sgodwincs

.cargo/config.toml

@@ -3,24 +3,27 @@ rustflags = [
   "-Wabsolute_paths_not_starting_with_crate",
   "-Welided_lifetimes_in_paths",
   "-Wexplicit_outlives_requirements",
+  "-Wffi_unwind_calls",
   "-Wkeyword_idents",
+  "-Wlet_underscore_drop",
   "-Wmacro_use_extern_crate",
   "-Wmeta_variable_misuse",
   "-Wmissing_abi",
+  "-Wmissing_copy_implementations",
   "-Wmissing_debug_implementations",
   "-Wmissing_docs",
   "-Wnon_ascii_idents",
-  "-Wnoop_method_call",
-  "-Wpointer_structural_match",
   "-Wsingle_use_lifetimes",
   "-Wtrivial_casts",
   "-Wtrivial_numeric_casts",
+  "-Wunit_bindings",
   "-Wunsafe_code",
   "-Wunsafe_op_in_unsafe_fn",
+  "-Wunused_crate_dependencies",
   "-Wunused_extern_crates",
   "-Wunused_import_braces",
   "-Wunused_lifetimes",
-  "-Wunused_qualifications",
+  "-Wunused_macro_rules",
   "-Wunused_results",
-  "-Wvariant_size_differences"
+  "-Wvariant_size_differences",
 ]

src/list_ordered_multimap.rs

@@ -7,8 +7,9 @@ use core::{
   borrow::Borrow,
   fmt::{self, Debug, Formatter},
   hash::{BuildHasher, Hash, Hasher},
-  iter::{FromIterator, FusedIterator},
+  iter::FusedIterator,
   marker::PhantomData,
+  mem,
 };
 
 use dlv_list::{
@@ -1369,7 +1370,7 @@ where
     match entry {
       RawEntryMut::Occupied(entry) => {
         let (key_index, map_entry) = entry.remove_entry();
-        let _ = self.keys.remove(key_index).unwrap();
+        mem::drop(self.keys.remove(key_index).unwrap());
         EntryValuesDrain::from_map_entry(&mut self.values, &map_entry)
       }
       RawEntryMut::Vacant(_) => EntryValuesDrain::empty(&mut self.values),
@@ -1568,7 +1569,7 @@ where
 
         if value_entry.previous_index.is_none() && value_entry.next_index.is_none() {
           let _ = entry.remove();
-          let _ = keys.remove(value_entry.key_index);
+          mem::drop(keys.remove(value_entry.key_index));
         } else {
           let map_entry = entry.get_mut();
           map_entry.length -= 1;
@@ -3456,7 +3457,7 @@ impl BuildHasher for DummyState {
 }
 
 /// Dummy hasher that is not meant to be used. It is simply a placeholder.
-#[derive(Clone, Debug)]
+#[derive(Clone, Copy, Debug)]
 pub struct DummyHasher;
 
 impl Hasher for DummyHasher {