fix: catch LLVM subprocess crashes

src/process/mod.rs

@@ -116,6 +116,25 @@ where
     let result = process
         .wait_with_output()
         .unwrap_or_else(|error| panic!("{executable:?} subprocess output reading: {error:?}"));
-    era_compiler_common::deserialize_from_slice(result.stdout.as_slice())
-        .unwrap_or_else(|error| panic!("{executable:?} subprocess stdout parsing: {error:?}"))
+
+    if result.status.code() != Some(era_compiler_common::EXIT_CODE_SUCCESS) {
+        let message = format!(
+            "{executable:?} subprocess failed with exit code {:?}:\n{}\n{}",
+            result.status.code(),
+            String::from_utf8_lossy(result.stdout.as_slice()),
+            String::from_utf8_lossy(result.stderr.as_slice()),
+        );
+        return Err(SolcStandardJsonOutputError::new_error(message, None, None));
+    }
+
+    match era_compiler_common::deserialize_from_slice(result.stdout.as_slice()) {
+        Ok(output) => output,
+        Err(error) => {
+            panic!(
+                "{executable:?} subprocess stdout parsing error: {error:?}\n{}\n{}",
+                String::from_utf8_lossy(result.stdout.as_slice()),
+                String::from_utf8_lossy(result.stderr.as_slice()),
+            );
+        }
+    }
 }