cargo fmt with stable defaults (#876)

testing/integration-tests/src/utils/context.rs

@@ -2,17 +2,11 @@
 // This file is dual-licensed as Apache-2.0 or GPL-3.0.
 // see LICENSE for license details.
 
-pub(crate) use crate::{
-    node_runtime,
-    TestNodeProcess,
-};
+pub(crate) use crate::{node_runtime, TestNodeProcess};
 
 use sp_core::sr25519::Pair;
 use sp_keyring::AccountKeyring;
-use subxt::{
-    tx::PairSigner,
-    SubstrateConfig,
-};
+use subxt::{tx::PairSigner, SubstrateConfig};
 
 /// substrate node should be installed on the $PATH
 const SUBSTRATE_NODE_PATH: &str = "substrate";
@@ -20,8 +14,10 @@ const SUBSTRATE_NODE_PATH: &str = "substrate";
 pub async fn test_context_with(key: AccountKeyring) -> TestContext {
     let path = std::env::var("SUBSTRATE_NODE_PATH").unwrap_or_else(|_| {
         if which::which(SUBSTRATE_NODE_PATH).is_err() {
-            panic!("A substrate binary should be installed on your path for integration tests. \
-            See https://github.com/paritytech/subxt/tree/master#integration-testing")
+            panic!(
+                "A substrate binary should be installed on your path for integration tests. \
+            See https://github.com/paritytech/subxt/tree/master#integration-testing"
+            )
         }
         SUBSTRATE_NODE_PATH.to_string()
     });