error: you are collect()ing an iterator and throwing away the result. Consider using an explicit for loop to exhaust the iterator --> $DIR/infinite_iter.rs:10:5 | 10 | repeat(0_u8).collect::>(); // infinite iter | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: `-D unused-collect` implied by `-D warnings` error: infinite iteration detected --> $DIR/infinite_iter.rs:10:5 | 10 | repeat(0_u8).collect::>(); // infinite iter | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | note: lint level defined here --> $DIR/infinite_iter.rs:8:8 | 8 | #[deny(infinite_iter)] | ^^^^^^^^^^^^^ error: infinite iteration detected --> $DIR/infinite_iter.rs:11:5 | 11 | (0..8_u32).take_while(square_is_lower_64).cycle().count(); // infinite iter | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: infinite iteration detected --> $DIR/infinite_iter.rs:12:5 | 12 | (0..8_u64).chain(0..).max(); // infinite iter | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: infinite iteration detected --> $DIR/infinite_iter.rs:14:5 | 14 | (0..8_u32).rev().cycle().map(|x| x + 1_u32).for_each(|x| println!("{}", x)); // infinite iter | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: infinite iteration detected --> $DIR/infinite_iter.rs:16:5 | 16 | (0_usize..).flat_map(|x| 0..x).product::(); // infinite iter | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: infinite iteration detected --> $DIR/infinite_iter.rs:17:5 | 17 | (0_u64..).filter(|x| x % 2 == 0).last(); // infinite iter | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: possible infinite iteration detected --> $DIR/infinite_iter.rs:24:5 | 24 | (0..).zip((0..).take_while(square_is_lower_64)).count(); // maybe infinite iter | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | note: lint level defined here --> $DIR/infinite_iter.rs:22:8 | 22 | #[deny(maybe_infinite_iter)] | ^^^^^^^^^^^^^^^^^^^ error: possible infinite iteration detected --> $DIR/infinite_iter.rs:25:5 | 25 | repeat(42).take_while(|x| *x == 42).chain(0..42).max(); // maybe infinite iter | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: possible infinite iteration detected --> $DIR/infinite_iter.rs:26:5 | 26 | (1..).scan(0, |state, x| { *state += x; Some(*state) }).min(); // maybe infinite iter | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: possible infinite iteration detected --> $DIR/infinite_iter.rs:27:5 | 27 | (0..).find(|x| *x == 24); // maybe infinite iter | ^^^^^^^^^^^^^^^^^^^^^^^^ error: possible infinite iteration detected --> $DIR/infinite_iter.rs:28:5 | 28 | (0..).position(|x| x == 24); // maybe infinite iter | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: possible infinite iteration detected --> $DIR/infinite_iter.rs:29:5 | 29 | (0..).any(|x| x == 24); // maybe infinite iter | ^^^^^^^^^^^^^^^^^^^^^^ error: possible infinite iteration detected --> $DIR/infinite_iter.rs:30:5 | 30 | (0..).all(|x| x == 24); // maybe infinite iter | ^^^^^^^^^^^^^^^^^^^^^^