Repository: rusoto/rusoto (language: rust)

Issue:
Unused std::error::Error import in rusoto_sts
```
warning: unused import: `std::error::Error`
  --> rusoto/services/sts/src/custom/web_identity.rs:11:5
   |
11 | use std::error::Error;
   |     ^^^^^^^^^^^^^^^^^
   |
   = note: `#[warn(unused_imports)]` on by default
```


Discussion / hints:

Fix patch:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index e7524f11f2b..e2a672d68c2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 ## [Unreleased]
 
 (Please put changes here)
+- Remove unused import
 - Updated AWS-CREDENTIALS.md to address https://github.com/rusoto/rusoto/issues/1597
 - Fixed SNS API's attributes and value keyword https://github.com/rusoto/rusoto/pull/1591
 - Adding support for web identity provider, which enables IAM roles for Kubernetes service accounts.
diff --git a/rusoto/services/sts/src/custom/web_identity.rs b/rusoto/services/sts/src/custom/web_identity.rs
index 472455e322e..90dc157de16 100644
--- a/rusoto/services/sts/src/custom/web_identity.rs
+++ b/rusoto/services/sts/src/custom/web_identity.rs
@@ -8,7 +8,6 @@ use rusoto_core::credential::{
 };
 use rusoto_core::request::HttpClient;
 use rusoto_core::{Client, Region, RusotoFuture};
-use std::error::Error;
 
 const AWS_WEB_IDENTITY_TOKEN_FILE: &str = "AWS_WEB_IDENTITY_TOKEN_FILE";
 


Test patch: