Fixed details dropdown

[Kixiron]

In the Versions lists any crate release that was not a library was incorrectly said to have failed to build when it should say that the crate isn't a library

Previous behavior:

Fixed behavior:

I was also getting rustfmt errors from the badges crate, so I ran a quick fmt on that in the second commit

[jyn514]

Can you also add a test for the new feature? See https://github.com/rust-lang/docs.rs/blob/master/src/web/releases.rs#L1055 for an example using kuchiki.

[jyn514]

The test failure is

2020-07-15T17:23:20.0381605Z failures:
2020-07-15T17:23:20.0381886Z 
2020-07-15T17:23:20.0383149Z ---- web::crate_details::tests::test_releases_should_be_sorted stdout ----
2020-07-15T17:23:20.0633434Z thread 'main' panicked at 'assertion failed: `(left == right)`
2020-07-15T17:23:20.0634469Z   left: `[Release { version: "1.0.0", build_status: true, yanked: false, is_library: true }, Release { version: "0.12.0", build_status: true, yanked: false, is_library: true }, Release { version: "0.3.0", build_status: false, yanked: false, is_library: true }, Release { version: "0.2.0", build_status: false, yanked: false, is_library: false }, Release { version: "0.2.0-alpha", build_status: true, yanked: false, is_library: true }, Release { version: "0.1.1", build_status: true, yanked: false, is_library: true }, Release { version: "0.1.0", build_status: true, yanked: false, is_library: true }]`,
2020-07-15T17:23:20.0635707Z  right: `[Release { version: "1.0.0", build_status: true, yanked: false, is_library: true }, Release { version: "0.12.0", build_status: true, yanked: false, is_library: true }, Release { version: "0.3.0", build_status: false, yanked: false, is_library: true }, Release { version: "0.2.0", build_status: true, yanked: true, is_library: true }, Release { version: "0.2.0-alpha", build_status: true, yanked: false, is_library: true }, Release { version: "0.1.1", build_status: true, yanked: false, is_library: true }, Release { version: "0.1.0", build_status: true, yanked: false, is_library: true }, Release { version: "0.2.0", build_status: false, yanked: false, is_library: false }]`', src/web/crate_details.rs:459:13

[Kixiron]

I fixed the failure but github's being weird with my fixup