error: this range is empty so this for loop will never run --> $DIR/for_loop.rs:40:14 | LL | for i in 10..0 { | ^^^^^ | = note: `-D clippy::reverse-range-loop` implied by `-D warnings` help: consider using the following if you are attempting to iterate over this range in reverse | LL | for i in (0..10).rev() { | ^^^^^^^^^^^^^ error: this range is empty so this for loop will never run --> $DIR/for_loop.rs:44:14 | LL | for i in 10..=0 { | ^^^^^^ help: consider using the following if you are attempting to iterate over this range in reverse | LL | for i in (0...10).rev() { | ^^^^^^^^^^^^^^ error: this range is empty so this for loop will never run --> $DIR/for_loop.rs:48:14 | LL | for i in MAX_LEN..0 { | ^^^^^^^^^^ help: consider using the following if you are attempting to iterate over this range in reverse | LL | for i in (0..MAX_LEN).rev() { | ^^^^^^^^^^^^^^^^^^ error: this range is empty so this for loop will never run --> $DIR/for_loop.rs:52:14 | LL | for i in 5..5 { | ^^^^ error: this range is empty so this for loop will never run --> $DIR/for_loop.rs:77:14 | LL | for i in 10..5 + 4 { | ^^^^^^^^^ help: consider using the following if you are attempting to iterate over this range in reverse | LL | for i in (5 + 4..10).rev() { | ^^^^^^^^^^^^^^^^^ error: this range is empty so this for loop will never run --> $DIR/for_loop.rs:81:14 | LL | for i in (5 + 2)..(3 - 1) { | ^^^^^^^^^^^^^^^^ help: consider using the following if you are attempting to iterate over this range in reverse | LL | for i in ((3 - 1)..(5 + 2)).rev() { | ^^^^^^^^^^^^^^^^^^^^^^^^ error: this range is empty so this for loop will never run --> $DIR/for_loop.rs:85:14 | LL | for i in (5 + 2)..(8 - 1) { | ^^^^^^^^^^^^^^^^ error: it is more concise to loop over references to containers instead of using explicit iteration methods --> $DIR/for_loop.rs:107:15 | LL | for _v in vec.iter() {} | ^^^^^^^^^^ help: to write this more concisely, try: `&vec` | = note: `-D clippy::explicit-iter-loop` implied by `-D warnings` error: it is more concise to loop over references to containers instead of using explicit iteration methods --> $DIR/for_loop.rs:109:15 | LL | for _v in vec.iter_mut() {} | ^^^^^^^^^^^^^^ help: to write this more concisely, try: `&mut vec` error: it is more concise to loop over containers instead of using explicit iteration methods` --> $DIR/for_loop.rs:112:15 | LL | for _v in out_vec.into_iter() {} | ^^^^^^^^^^^^^^^^^^^ help: to write this more concisely, try: `out_vec` | = note: `-D clippy::explicit-into-iter-loop` implied by `-D warnings` error: it is more concise to loop over references to containers instead of using explicit iteration methods --> $DIR/for_loop.rs:115:15 | LL | for _v in array.into_iter() {} | ^^^^^^^^^^^^^^^^^ help: to write this more concisely, try: `&array` error: it is more concise to loop over references to containers instead of using explicit iteration methods --> $DIR/for_loop.rs:120:15 | LL | for _v in [1, 2, 3].iter() {} | ^^^^^^^^^^^^^^^^ help: to write this more concisely, try: `&[1, 2, 3]` error: it is more concise to loop over references to containers instead of using explicit iteration methods --> $DIR/for_loop.rs:124:15 | LL | for _v in [0; 32].iter() {} | ^^^^^^^^^^^^^^ help: to write this more concisely, try: `&[0; 32]` error: it is more concise to loop over references to containers instead of using explicit iteration methods --> $DIR/for_loop.rs:129:15 | LL | for _v in ll.iter() {} | ^^^^^^^^^ help: to write this more concisely, try: `&ll` error: it is more concise to loop over references to containers instead of using explicit iteration methods --> $DIR/for_loop.rs:132:15 | LL | for _v in vd.iter() {} | ^^^^^^^^^ help: to write this more concisely, try: `&vd` error: it is more concise to loop over references to containers instead of using explicit iteration methods --> $DIR/for_loop.rs:135:15 | LL | for _v in bh.iter() {} | ^^^^^^^^^ help: to write this more concisely, try: `&bh` error: it is more concise to loop over references to containers instead of using explicit iteration methods --> $DIR/for_loop.rs:138:15 | LL | for _v in hm.iter() {} | ^^^^^^^^^ help: to write this more concisely, try: `&hm` error: it is more concise to loop over references to containers instead of using explicit iteration methods --> $DIR/for_loop.rs:141:15 | LL | for _v in bt.iter() {} | ^^^^^^^^^ help: to write this more concisely, try: `&bt` error: it is more concise to loop over references to containers instead of using explicit iteration methods --> $DIR/for_loop.rs:144:15 | LL | for _v in hs.iter() {} | ^^^^^^^^^ help: to write this more concisely, try: `&hs` error: it is more concise to loop over references to containers instead of using explicit iteration methods --> $DIR/for_loop.rs:147:15 | LL | for _v in bs.iter() {} | ^^^^^^^^^ help: to write this more concisely, try: `&bs` error: you are iterating over `Iterator::next()` which is an Option; this will compile but is probably not what you want --> $DIR/for_loop.rs:149:15 | LL | for _v in vec.iter().next() {} | ^^^^^^^^^^^^^^^^^ | = note: `-D clippy::iter-next-loop` implied by `-D warnings` error: you are collect()ing an iterator and throwing away the result. Consider using an explicit for loop to exhaust the iterator --> $DIR/for_loop.rs:156:5 | LL | vec.iter().cloned().map(|x| out.push(x)).collect::>(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: `-D clippy::unused-collect` implied by `-D warnings` error: aborting due to 22 previous errors