error: variables can be used directly in the `format!` string
   --> crates/bitcoind_rpc/examples/filter_iter_v2.rs:321:5
    |
321 |     println!("Scanned up to height: {}", last_height);
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#uninlined_format_args
    = note: `-D clippy::uninlined-format-args` implied by `-D warnings`
    = help: to override `-D warnings` add `#[allow(clippy::uninlined_format_args)]`
help: change this to
    |
321 -     println!("Scanned up to height: {}", last_height);
321 +     println!("Scanned up to height: {last_height}");
    |

error: constant `NETWORK` is never used
  --> crates/bitcoind_rpc/examples/filter_iter_v2.rs:25:7
   |
25 | const NETWORK: Network = Network::Signet;
   |       ^^^^^^^
   |
   = note: `-D dead-code` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(dead_code)]`