warning: useless conversion to the same type: `std::string::String`
  --> src/main.rs:50:44
   |
50 |         .item("version", AttributeValue::S(String::from(indexer_version)));
   |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider removing `String::from()`: `indexer_version`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
   = note: `#[warn(clippy::useless_conversion)]` on by default

warning: using `Result.or_else(|x| Err(y))`, which is more succinctly expressed as `map_err(|x| y)`
  --> crates/ark-starknet/src/collection_manager.rs:55:23
   |
55 |               Err(_) => self
   |  _______________________^
56 | |                 .call_contract_helper(
57 | |                     contract_address,
58 | |                     "owner_of",
...  |
63 | |                 .await
64 | |                 .or_else(|_| Err(anyhow!("Failed to get token owner"))),
   | |_______________________________________________________________________^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bind_instead_of_map
   = note: `#[warn(clippy::bind_instead_of_map)]` on by default
help: try
   |
55 ~             Err(_) => self
56 +                 .call_contract_helper(
57 +                     contract_address,
58 +                     "owner_of",
59 +                     token_id_low,
60 +                     token_id_high,
61 +                     effective_block_id,
62 +                 )
63 ~                 .await.map_err(|_| anyhow!("Failed to get token owner")),
   |