{"action":"closed","issue":{"url":"https://api.github.com/repos/exercism/xrust/issues/82","repository_url":"https://api.github.com/repos/exercism/xrust","labels_url":"https://api.github.com/repos/exercism/xrust/issues/82/labels{/name}","comments_url":"https://api.github.com/repos/exercism/xrust/issues/82/comments","events_url":"https://api.github.com/repos/exercism/xrust/issues/82/events","html_url":"https://github.com/exercism/xrust/issues/82","id":139725124,"number":82,"title":"Domino test case clarification of chain","user":{"login":"masters3d","id":6539412,"avatar_url":"https://avatars.githubusercontent.com/u/6539412?v=3","gravatar_id":"","url":"https://api.github.com/users/masters3d","html_url":"https://github.com/masters3d","followers_url":"https://api.github.com/users/masters3d/followers","following_url":"https://api.github.com/users/masters3d/following{/other_user}","gists_url":"https://api.github.com/users/masters3d/gists{/gist_id}","starred_url":"https://api.github.com/users/masters3d/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/masters3d/subscriptions","organizations_url":"https://api.github.com/users/masters3d/orgs","repos_url":"https://api.github.com/users/masters3d/repos","events_url":"https://api.github.com/users/masters3d/events{/privacy}","received_events_url":"https://api.github.com/users/masters3d/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":2,"created_at":"2016-03-09T22:46:39Z","updated_at":"2016-03-15T01:52:27Z","closed_at":"2016-03-15T01:52:27Z","body":"What does Correct Chain mean in domino?\r\n\r\nCouldn't the below test case output ?\r\n41 12 23\r\nnot valid?\r\n\r\n```rust\r\nfn invalid_input() {\r\n    let input = vec!((1, 2), (4, 1), (2, 3));\r\n    assert_eq!(dominoes::chain(&input), None);\r\n}\r\n```"}}