error: consider using `sort`
  --> tests/ui/unnecessary_sort_by.rs:12:5
   |
LL |     vec.sort_by(|a, b| a.cmp(b));
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `vec.sort()`
   |
   = note: `-D clippy::unnecessary-sort-by` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::unnecessary_sort_by)]`

error: consider using `sort`
  --> tests/ui/unnecessary_sort_by.rs:13:5
   |
LL |     vec.sort_unstable_by(|a, b| a.cmp(b));
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `vec.sort_unstable()`

error: consider using `sort_by_key`
  --> tests/ui/unnecessary_sort_by.rs:14:5
   |
LL |     vec.sort_by(|a, b| (a + 5).abs().cmp(&(b + 5).abs()));
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `vec.sort_by_key(|a| (a + 5).abs())`

error: consider using `sort_by_key`
  --> tests/ui/unnecessary_sort_by.rs:15:5
   |
LL |     vec.sort_unstable_by(|a, b| id(-a).cmp(&id(-b)));
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `vec.sort_unstable_by_key(|a| id(-a))`

error: consider using `sort_by_key`
  --> tests/ui/unnecessary_sort_by.rs:18:5
   |
LL |     vec.sort_by(|a, b| (b + 5).abs().cmp(&(a + 5).abs()));
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `vec.sort_by_key(|b| std::cmp::Reverse((b + 5).abs()))`

error: consider using `sort_by_key`
  --> tests/ui/unnecessary_sort_by.rs:19:5
   |
LL |     vec.sort_unstable_by(|a, b| id(-b).cmp(&id(-a)));
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `vec.sort_unstable_by_key(|b| std::cmp::Reverse(id(-b)))`

error: consider using `sort_by_key`
  --> tests/ui/unnecessary_sort_by.rs:29:5
   |
LL |     vec.sort_by(|a, b| (***a).abs().cmp(&(***b).abs()));
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `vec.sort_by_key(|a| (***a).abs())`

error: consider using `sort_by_key`
  --> tests/ui/unnecessary_sort_by.rs:30:5
   |
LL |     vec.sort_unstable_by(|a, b| (***a).abs().cmp(&(***b).abs()));
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `vec.sort_unstable_by_key(|a| (***a).abs())`

error: consider using `sort_by_key`
  --> tests/ui/unnecessary_sort_by.rs:89:9
   |
LL |         args.sort_by(|a, b| a.name().cmp(&b.name()));
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `args.sort_by_key(|a| a.name())`

error: consider using `sort_by_key`
  --> tests/ui/unnecessary_sort_by.rs:90:9
   |
LL |         args.sort_unstable_by(|a, b| a.name().cmp(&b.name()));
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `args.sort_unstable_by_key(|a| a.name())`

error: consider using `sort_by_key`
  --> tests/ui/unnecessary_sort_by.rs:92:9
   |
LL |         args.sort_by(|a, b| b.name().cmp(&a.name()));
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `args.sort_by_key(|b| std::cmp::Reverse(b.name()))`

error: consider using `sort_by_key`
  --> tests/ui/unnecessary_sort_by.rs:93:9
   |
LL |         args.sort_unstable_by(|a, b| b.name().cmp(&a.name()));
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `args.sort_unstable_by_key(|b| std::cmp::Reverse(b.name()))`

error: aborting due to 12 previous errors