fix(contract): doctests (#2007)

ethers-contract/src/contract.rs

@@ -107,10 +107,12 @@ use std::{fmt::Debug, marker::PhantomData, sync::Arc};
 /// ```
 ///
 /// # Event Logging
+///
 /// Querying structured logs requires you to have defined a struct with the expected
 /// datatypes and to have implemented `Detokenize` for it. This boilerplate code
 /// is generated for you via the [`abigen`] and [`Abigen` builder] utilities.
-///
+//
+// Ignore because `ethers-contract-derive` macros do not work in doctests in `ethers-contract`.
 /// ```ignore
 /// # async fn foo() -> Result<(), Box<dyn std::error::Error>> {
 /// use ethers_core::{abi::Abi, types::Address};

ethers-contract/src/event.rs

@@ -133,8 +133,8 @@ where
     /// requests, and this is done on an interval basis.
     ///
     /// # Example
-    ///
-    /// ```
+    // Ignore because `ethers-contract-derive` macros do not work in doctests in `ethers-contract`.
+    /// ```ignore
     /// # #[cfg(feature = "abigen")]
     /// # async fn test<M:ethers_providers::Middleware>(contract: ethers_contract::Contract<M>) {
     /// # use ethers_core::types::*;

ethers-contract/src/stream.rs

@@ -75,8 +75,8 @@ where
     /// will be wrapped into the right-hand variant of that `Either`.
     ///
     /// # Example
-    ///
-    /// ```
+    // Ignore because `ethers-contract-derive` macros do not work in doctests in `ethers-contract`.
+    /// ```ignore
     /// # #[cfg(feature = "abigen")]
     /// # async fn test<M:ethers_providers::Middleware>(contract: ethers_contract::Contract<M>) {
     /// # use ethers_core::types::*;