warning: hiding a lifetime that's elided elsewhere is confusing
   --> ton-liteserver-client/src/tracker/masterchain_first_block_tracker.rs:114:19
    |
114 |     pub fn borrow(&self) -> Ref<Option<BlockHeader>> {
    |                   ^^^^^     ------------------------ the same lifetime is hidden here
    |                   |
    |                   the lifetime is elided here
    |
    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
help: use `'_` for type paths
    |
114 |     pub fn borrow(&self) -> Ref<'_, Option<BlockHeader>> {
    |                                 +++

warning: called `unwrap` on `block` after checking its variant with `is_ok`
  --> ton-liteserver-client/src/tracker/find_first_block.rs:46:28
   |
45 |         if block.is_ok() {
   |         ---------------- help: try: `if let Ok(<item>) = &block`
46 |             success = Some(block.as_ref().unwrap().clone());
   |                            ^^^^^^^^^^^^^^^^^^^^^^^
   |
   = 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