Add some clippy lints

emath/src/lib.rs

@@ -15,19 +15,26 @@
     clippy::all,
     clippy::await_holding_lock,
     clippy::dbg_macro,
+    clippy::debug_assert_with_mut_call,
     clippy::doc_markdown,
     clippy::empty_enum,
     clippy::enum_glob_use,
     clippy::exit,
+    clippy::explicit_into_iter_loop,
     clippy::filter_map_next,
     clippy::fn_params_excessive_bools,
     clippy::if_let_mutex,
     clippy::imprecise_flops,
     clippy::inefficient_to_string,
+    clippy::large_types_passed_by_value,
+    clippy::let_unit_value,
     clippy::linkedlist,
     clippy::lossy_float_literal,
     clippy::macro_use_imports,
+    clippy::map_err_ignore,
+    clippy::map_flatten,
     clippy::match_on_vec_items,
+    clippy::match_same_arms,
     clippy::match_wildcard_for_single_variants,
     clippy::mem_forget,
     clippy::mismatched_target_os,
@@ -38,18 +45,20 @@
     clippy::needless_pass_by_value,
     clippy::option_option,
     clippy::pub_enum_variant_names,
+    clippy::ref_option_ref,
     clippy::rest_pat_in_fully_bound_structs,
+    clippy::string_add_assign,
+    clippy::string_add,
+    clippy::string_to_string,
     clippy::todo,
     clippy::unimplemented,
     clippy::unnested_or_patterns,
+    clippy::unused_self,
     clippy::verbose_file_reads,
     future_incompatible,
     missing_crate_level_docs,
-    missing_doc_code_examples,
-    // missing_docs,
     nonstandard_style,
-    rust_2018_idioms,
-    unused_doc_comments,
+    rust_2018_idioms
 )]
 #![allow(clippy::manual_range_contains)]