{"action":"opened","issue":{"url":"https://api.github.com/repos/rust-lang/rust/issues/31242","labels_url":"https://api.github.com/repos/rust-lang/rust/issues/31242/labels{/name}","comments_url":"https://api.github.com/repos/rust-lang/rust/issues/31242/comments","events_url":"https://api.github.com/repos/rust-lang/rust/issues/31242/events","html_url":"https://github.com/rust-lang/rust/issues/31242","id":129240680,"number":31242,"title":"clarify BuilderHasherDefault summary","user":{"login":"tshepang","id":588486,"avatar_url":"https://avatars.githubusercontent.com/u/588486?v=3","gravatar_id":"","url":"https://api.github.com/users/tshepang","html_url":"https://github.com/tshepang","followers_url":"https://api.github.com/users/tshepang/followers","following_url":"https://api.github.com/users/tshepang/following{/other_user}","gists_url":"https://api.github.com/users/tshepang/gists{/gist_id}","starred_url":"https://api.github.com/users/tshepang/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tshepang/subscriptions","organizations_url":"https://api.github.com/users/tshepang/orgs","repos_url":"https://api.github.com/users/tshepang/repos","events_url":"https://api.github.com/users/tshepang/events{/privacy}","received_events_url":"https://api.github.com/users/tshepang/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2016-01-27T19:16:42Z","updated_at":"2016-01-27T19:16:42Z","closed_at":null,"body":"This line is not clear:\r\n\r\n> A structure which implements BuildHasher for all Hasher types which also implement Default.\r\n\r\nI don't know if BuilderHasherDefault implements BuilderHasher and Default for Hasher types, or if it implements BuilderHasher for Hasher types that themselves implement Default."}}