error: swapping with a temporary value is inefficient
  --> tests/ui/swap_with_temporary.rs:22:5
   |
LL |     swap(&mut func(), &mut y);
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use assignment instead: `y = func()`
   |
note: this expression returns a temporary value
  --> tests/ui/swap_with_temporary.rs:22:15
   |
LL |     swap(&mut func(), &mut y);
   |               ^^^^^^
   = note: `-D clippy::swap-with-temporary` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::swap_with_temporary)]`

error: swapping with a temporary value is inefficient
  --> tests/ui/swap_with_temporary.rs:25:5
   |
LL |     swap(&mut x, &mut func());
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use assignment instead: `x = func()`
   |
note: this expression returns a temporary value
  --> tests/ui/swap_with_temporary.rs:25:23
   |
LL |     swap(&mut x, &mut func());
   |                       ^^^^^^

error: swapping with a temporary value is inefficient
  --> tests/ui/swap_with_temporary.rs:28:5
   |
LL |     swap(z, &mut func());
   |     ^^^^^^^^^^^^^^^^^^^^ help: use assignment instead: `*z = func()`
   |
note: this expression returns a temporary value
  --> tests/ui/swap_with_temporary.rs:28:18
   |
LL |     swap(z, &mut func());
   |                  ^^^^^^

error: swapping with a temporary value is inefficient
  --> tests/ui/swap_with_temporary.rs:36:5
   |
LL |     swap(&mut func(), z);
   |     ^^^^^^^^^^^^^^^^^^^^ help: use assignment instead: `*z = func()`
   |
note: this expression returns a temporary value
  --> tests/ui/swap_with_temporary.rs:36:15
   |
LL |     swap(&mut func(), z);
   |               ^^^^^^

error: swapping with a temporary value is inefficient
  --> tests/ui/swap_with_temporary.rs:53:5
   |
LL |     swap(&mut mac!(funcall func), z);
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use assignment instead: `*z = mac!(funcall func)`
   |
note: this expression returns a temporary value
  --> tests/ui/swap_with_temporary.rs:53:15
   |
LL |     swap(&mut mac!(funcall func), z);
   |               ^^^^^^^^^^^^^^^^^^

error: swapping with a temporary value is inefficient
  --> tests/ui/swap_with_temporary.rs:55:5
   |
LL |     swap(&mut mac!(funcall func), mac!(ident z));
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use assignment instead: `*mac!(ident z) = mac!(funcall func)`
   |
note: this expression returns a temporary value
  --> tests/ui/swap_with_temporary.rs:55:15
   |
LL |     swap(&mut mac!(funcall func), mac!(ident z));
   |               ^^^^^^^^^^^^^^^^^^

error: swapping with a temporary value is inefficient
  --> tests/ui/swap_with_temporary.rs:57:5
   |
LL |     swap(mac!(ident z), &mut mac!(funcall func));
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use assignment instead: `*mac!(ident z) = mac!(funcall func)`
   |
note: this expression returns a temporary value
  --> tests/ui/swap_with_temporary.rs:57:30
   |
LL |     swap(mac!(ident z), &mut mac!(funcall func));
   |                              ^^^^^^^^^^^^^^^^^^

error: swapping with a temporary value is inefficient
  --> tests/ui/swap_with_temporary.rs:59:5
   |
LL |     swap(mac!(refmut y), &mut func());
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use assignment instead: `*mac!(refmut y) = func()`
   |
note: this expression returns a temporary value
  --> tests/ui/swap_with_temporary.rs:59:31
   |
LL |     swap(mac!(refmut y), &mut func());
   |                               ^^^^^^

error: swapping with a temporary value is inefficient
  --> tests/ui/swap_with_temporary.rs:92:13
   |
LL |             swap(&mut vec![42], &mut self.thing.lock().unwrap());
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use assignment instead: `*self.thing.lock().unwrap() = vec![42]`
   |
note: this expression returns a temporary value
  --> tests/ui/swap_with_temporary.rs:92:23
   |
LL |             swap(&mut vec![42], &mut self.thing.lock().unwrap());
   |                       ^^^^^^^^

error: swapping with a temporary value is inefficient
  --> tests/ui/swap_with_temporary.rs:100:5
   |
LL |     swap(&mut ***v1, &mut vec![]);
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use assignment instead: `***v1 = vec![]`
   |
note: this expression returns a temporary value
  --> tests/ui/swap_with_temporary.rs:100:27
   |
LL |     swap(&mut ***v1, &mut vec![]);
   |                           ^^^^^^

error: swapping with a temporary value is inefficient
  --> tests/ui/swap_with_temporary.rs:118:5
   |
LL |     swap(&mut vec![], &mut v1.lock().unwrap());
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use assignment instead: `***v1.lock().unwrap() = vec![]`
   |
note: this expression returns a temporary value
  --> tests/ui/swap_with_temporary.rs:118:15
   |
LL |     swap(&mut vec![], &mut v1.lock().unwrap());
   |               ^^^^^^

error: aborting due to 11 previous errors