From 75056c6a780529692e1b44e18402352205f9e1f6 Mon Sep 17 00:00:00 2001
From: Matteo Bigoi <1781140+crisidev@users.noreply.github.com>
Date: Fri, 18 Mar 2022 22:23:05 +0000
Subject: [PATCH] Fix bug where where format argument is not a literal string
 (#1266)

---
 .../rust/codegen/smithy/protocols/parse/JsonParserGenerator.kt  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/codegen/src/main/kotlin/software/amazon/smithy/rust/codegen/smithy/protocols/parse/JsonParserGenerator.kt b/codegen/src/main/kotlin/software/amazon/smithy/rust/codegen/smithy/protocols/parse/JsonParserGenerator.kt
index d963b9684..739f0a93e 100644
--- a/codegen/src/main/kotlin/software/amazon/smithy/rust/codegen/smithy/protocols/parse/JsonParserGenerator.kt
+++ b/codegen/src/main/kotlin/software/amazon/smithy/rust/codegen/smithy/protocols/parse/JsonParserGenerator.kt
@@ -370,7 +370,7 @@ class JsonParserGenerator(
                         if (StructureGenerator.fallibleBuilder(shape, symbolProvider)) {
                             rustTemplate(
                                 """.map_err(|err| #{Error}::new(
-                                #{ErrorReason}::Custom(format!({}, err).into()), None)
+                                #{ErrorReason}::Custom(format!("{}", err).into()), None)
                                 )?""",
                                 *codegenScope
                             )
-- 
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