chore: format chained error for EvmError (#9169)

Author: grandizzy

crates/evm/evm/src/executors/mod.rs

@@ -663,7 +663,7 @@ pub enum EvmError {
     Skip(SkipReason),
     /// Any other error.
     #[error(transparent)]
-    Eyre(#[from] eyre::Error),
+    Eyre(eyre::Error),
 }
 
 impl From<ExecutionErr> for EvmError {
@@ -678,6 +678,16 @@ impl From<alloy_sol_types::Error> for EvmError {
     }
 }
 
+impl From<eyre::Error> for EvmError {
+    fn from(err: eyre::Report) -> Self {
+        let mut chained_cause = String::new();
+        for cause in err.chain() {
+            chained_cause.push_str(format!("{cause}; ").as_str());
+        }
+        Self::Eyre(eyre::format_err!("{chained_cause}"))
+    }
+}
+
 /// The result of a deployment.
 #[derive(Debug)]
 pub struct DeployResult {

crates/forge/tests/cli/script.rs

@@ -2210,3 +2210,27 @@ Simulated On-chain Traces:
 ...
 "#]]);
 });
+
+// Tests that chained errors are properly displayed.
+// <https://github.com/foundry-rs/foundry/issues/9161>
+forgetest_init!(should_display_evm_chained_error, |prj, cmd| {
+    let script = prj
+        .add_source(
+            "Foo",
+            r#"
+import "forge-std/Script.sol";
+
+contract ContractScript is Script {
+    function run() public {
+    }
+}
+   "#,
+        )
+        .unwrap();
+    cmd.arg("script").arg(script).args(["--fork-url", "https://public-node.testnet.rsk.co"]).assert_failure().stderr_eq(str![[r#"
+Error: 
+Failed to deploy script:
+backend: failed while inspecting; header validation error: `prevrandao` not set; `prevrandao` not set; 
+
+"#]]);
+});