message: rustfmt for nightly changes.
diff: @@ -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 {
  