error: this looks like you are swapping elements of `foo` manually --> $DIR/swap.rs:11:5 | 11 | / let temp = foo[0]; 12 | | foo[0] = foo[1]; 13 | | foo[1] = temp; | |_________________^ help: try: `foo.swap(0, 1)` | = note: `-D manual-swap` implied by `-D warnings` error: this looks like you are swapping elements of `foo` manually --> $DIR/swap.rs:20:5 | 20 | / let temp = foo[0]; 21 | | foo[0] = foo[1]; 22 | | foo[1] = temp; | |_________________^ help: try: `foo.swap(0, 1)` error: this looks like you are swapping elements of `foo` manually --> $DIR/swap.rs:29:5 | 29 | / let temp = foo[0]; 30 | | foo[0] = foo[1]; 31 | | foo[1] = temp; | |_________________^ help: try: `foo.swap(0, 1)` error: this looks like you are swapping `a` and `b` manually --> $DIR/swap.rs:47:7 | 47 | ; let t = a; | _______^ 48 | | a = b; 49 | | b = t; | |_________^ help: try: `std::mem::swap(&mut a, &mut b)` | = note: or maybe you should use `std::mem::replace`? error: this looks like you are swapping `c.0` and `a` manually --> $DIR/swap.rs:56:7 | 56 | ; let t = c.0; | _______^ 57 | | c.0 = a; 58 | | a = t; | |_________^ help: try: `std::mem::swap(&mut c.0, &mut a)` | = note: or maybe you should use `std::mem::replace`? error: this looks like you are trying to swap `a` and `b` --> $DIR/swap.rs:44:5 | 44 | / a = b; 45 | | b = a; | |_________^ help: try: `std::mem::swap(&mut a, &mut b)` | = note: `-D almost-swapped` implied by `-D warnings` = note: or maybe you should use `std::mem::replace`? error: this looks like you are trying to swap `c.0` and `a` --> $DIR/swap.rs:53:5 | 53 | / c.0 = a; 54 | | a = c.0; | |___________^ help: try: `std::mem::swap(&mut c.0, &mut a)` | = note: or maybe you should use `std::mem::replace`?