warning: called `unwrap` on `root` after checking its variant with `is_none`
  --> crates/tree_availability/src/world_tree/tree_data.rs:86:24
   |
79 |         if root.is_none() {
   |         ----------------- help: try: `if let Some(..) = root`
...
86 |             let root = root.unwrap();
   |                        ^^^^^^^^^^^^^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_unwrap
   = note: `#[warn(clippy::unnecessary_unwrap)]` on by default

warning: unused import: `Ordering`
 --> crates/tree_availability/src/world_tree/tree_updater.rs:1:48
  |
1 | use std::sync::atomic::{AtomicBool, AtomicU64, Ordering};
  |                                                ^^^^^^^^

warning: unused import: `ethers::types::Selector`
 --> crates/tree_availability/src/world_tree/abi.rs:2:5
  |
2 | use ethers::types::Selector;
  |     ^^^^^^^^^^^^^^^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` on by default