```text
warning: manual implementation of `err`
   --> test/test_utils.rs:595:25
    |
595 |           .filter_map(|v| match v {
    |  _________________________^
596 | |             Err(verify) => Some(verify),
597 | |             _ => None,
598 | |         })
    | |_________^ help: replace with: `v.err()`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_ok_err
    = note: `#[warn(clippy::manual_ok_err)]` on by default
```

```text
warning: called `Iterator::last` on a `DoubleEndedIterator`; this will needlessly iterate the entire iterator
  --> test/environment/test_env.rs:25:24
   |
25 |     assert!(ld_preload.last().unwrap() == "/my/custom/ld/preload/path.so");
   |                        ^^^^^^ help: try: `next_back()`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#double_ended_iterator_last
   = note: `#[warn(clippy::double_ended_iterator_last)]` on by default
```

```text
warning: this `repeat().take()` can be written more concisely
  --> main/utility/byte_queue.rs:70:29
   |
70 |         BytesMut::from_iter(std::iter::repeat(0).take(size))
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `repeat_n()` instead: `std::iter::repeat_n(0, size)`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_repeat_n
   = note: `#[warn(clippy::manual_repeat_n)]` on by default
```

```text
warning: length comparison to zero
   --> main/host/process.rs:331:46
    |
331 |         if !clear_child_tid_pvp.is_null() && self.threads.borrow().len() > 0 {
    |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!self.threads.borrow().is_empty()`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
    = note: `#[warn(clippy::len_zero)]` on by default
```

```text
warning: doc list item overindented
   --> main/core/work/task.rs:185:9
    |
185 |     ///    for `HostTreePointer::new`.
    |         ^^^ help: try using `  ` (2 spaces)
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#doc_overindented_list_items
    = note: `#[warn(clippy::doc_overindented_list_items)]` on by default
```