rustfmt for nightly changes.

Author: ehuss

src/cargo/core/package_id.rs

@@ -226,7 +226,10 @@ mod tests {
     fn debug() {
         let loc = CRATES_IO_INDEX.into_url().unwrap();
         let pkg_id = PackageId::new("foo", "1.0.0", SourceId::for_registry(&loc).unwrap()).unwrap();
-        assert_eq!(r#"PackageId { name: "foo", version: "1.0.0", source: "registry `https://github.com/rust-lang/crates.io-index`" }"#, format!("{:?}", pkg_id));
+        assert_eq!(
+            r#"PackageId { name: "foo", version: "1.0.0", source: "registry `https://github.com/rust-lang/crates.io-index`" }"#,
+            format!("{:?}", pkg_id)
+        );
 
         let expected = r#"
 PackageId {