error: variables can be used directly in the `format!` string
  --> crates/electrum/tests/test_electrum.rs:70:28
   |
70 |             .map_err(|err| anyhow::anyhow!("LocalChain update error: {:?}", err))?;
   |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = 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
   |
70 -             .map_err(|err| anyhow::anyhow!("LocalChain update error: {:?}", err))?;
70 +             .map_err(|err| anyhow::anyhow!("LocalChain update error: {err:?}"))?;
   |