|  | #![stable(feature = "bar", since = "1.0")] | 
|  | #![crate_name = "foo"] | 
|  | #![feature(staged_api)] | 
|  |  | 
|  | //@ has foo/trait.Bar.html | 
|  | //@ has - '//div[@class="main-heading"]/*[@class="sub-heading"]' '1.0.0 · Source' | 
|  | #[stable(feature = "bar", since = "1.0")] | 
|  | pub trait Bar { | 
|  | //@ has - '//*[@id="tymethod.foo"]/*[@class="rightside"]' '3.0.0 · Source' | 
|  | #[stable(feature = "foobar", since = "3.0")] | 
|  | fn foo(); | 
|  | } | 
|  |  | 
|  | //@ has - '//div[@id="implementors-list"]//*[@class="rightside"]' '4.0.0 · Source' | 
|  |  | 
|  | //@ has foo/struct.Foo.html | 
|  | //@ has - '//div[@class="main-heading"]/*[@class="sub-heading"]' '1.0.0 · Source' | 
|  | #[stable(feature = "baz", since = "1.0")] | 
|  | pub struct Foo; | 
|  |  | 
|  | impl Foo { | 
|  | //@ has - '//*[@id="method.foofoo"]/*[@class="rightside"]' '3.0.0 · Source' | 
|  | #[stable(feature = "foobar", since = "3.0")] | 
|  | pub fn foofoo() {} | 
|  | } | 
|  |  | 
|  | #[stable(feature = "yolo", since = "4.0")] | 
|  | impl Bar for Foo { | 
|  | fn foo() {} | 
|  | } |