removed failure, used thiserror instead

Author: MindFlavor

azure_sdk_auth_aad/Cargo.toml

@@ -18,7 +18,6 @@ edition            = "2018"
 azure_sdk_core       = { path = "../azure_sdk_core", version = "0.43.3" }
 oauth2               = { version = "3.0.0-alpha.9", features = ["reqwest-010", "futures-03"], default-features = false}
 url                  = "2.1"
-failure              = "0.1"
 futures              = "0.3"
 serde                = "1.0"
 serde_derive         = "1.0"

azure_sdk_auth_aad/src/errors.rs

@@ -1,25 +1,25 @@
-#[derive(Debug, Fail)]
+use thiserror::Error;
+
+#[derive(Debug, Error)]
 pub enum ServerReceiveError {
-    #[fail(display = "unexpected redirect url: {}", url)]
+    #[error("unexpected redirect url: {}", url)]
     UnexpectedRedirectUrl { url: String },
-    #[fail(display = "query pair not found: {}", query_pair)]
+    #[error("query pair not found: {}", query_pair)]
     QueryPairNotFound { query_pair: String },
-    #[fail(
-        display = "State secret mismatch: expected {}, recieved: {}",
-        expected_state_secret, received_state_secret
+    #[error(
+        "State secret mismatch: expected {}, recieved: {}",
+        expected_state_secret,
+        received_state_secret
     )]
     StateSecretMismatch {
         expected_state_secret: String,
         received_state_secret: String,
     },
 }
 
-#[derive(Debug, Fail, Serialize, Deserialize)]
+#[derive(Debug, Error, Serialize, Deserialize)]
 #[serde(untagged)]
 pub enum ErrorResponse {
-    #[fail(
-        display = "Unrecognized Azure error response:\n{}\n",
-        error_description
-    )]
+    #[error("Unrecognized Azure error response:\n{}\n", error_description)]
     GenericError { error_description: String },
 }

azure_sdk_auth_aad/src/lib.rs

@@ -1,7 +1,5 @@
 #![feature(async_closure)]
 #[macro_use]
-extern crate failure;
-#[macro_use]
 extern crate serde_derive;
 extern crate log;
 use azure_sdk_core::errors::AzureError;