rustfmt is not indenting attributes

[fitzgen]

input.rs:

extern "C" {
#[link_name = "_ZN7MyClass26example_check_no_collisionE"]
    pub static mut  MyClass_example_check_no_collision  :  * const :: std :: os :: raw :: c_int ;
}

Run rustfmt on it:

$ rustup run nightly rustfmt --version
0.2.2-nightly ( )
$ rustup run nightly rustfmt < input.rs 
extern "C" {
#[link_name = "_ZN7MyClass26example_check_no_collisionE"]
    pub static mut MyClass_example_check_no_collision: *const ::std::os::raw::c_int;
}

Note that the link name attribute is not indented properly.