ices/70303.rs: fixed with errors

[github-actions]

Issue: rust-lang/rust#70303

#![feature(generic_associated_types)]
#![allow(dead_code, incomplete_features)]
#![crate_type = "lib"]

trait Document {
    type Cursor<'a>: DocCursor<'a>;

    fn cursor(&self) -> Self::Cursor<'_>;
}

struct DocumentImpl {}

impl Document for DocumentImpl {
    type Cursor<'a> = DocCursorImpl<'a>;

    fn cursor(&self) -> Self::Cursor<'_> {
        DocCursorImpl { document: &self }
    }
}

trait DocCursor<'a> {}

struct DocCursorImpl<'a> {
    document: &'a DocumentImpl,
}

impl<'a> DocCursor<'a> for DocCursorImpl<'a> {}

struct Lexer<'d, Cursor>
where
    Cursor: DocCursor<'d>,
{
    cursor: Cursor,
    _phantom: std::marker::PhantomData<&'d ()>,
}

impl<'d, Cursor> Lexer<'d, Cursor>
where
    Cursor: DocCursor<'d>,
{
    pub fn from<Doc>(document: &'d Doc) -> Lexer<'d, Cursor>
    where
        Doc: Document<Cursor = Cursor>,
    {
        Lexer {
            cursor: document.cursor(),
            _phantom: std::marker::PhantomData,
        }
    }
}

pub fn test() {
    let doc = DocumentImpl {};
    let _lexer: Lexer<'_, DocCursorImpl<'_>> = Lexer::from(&doc);
}

=== stdout ===
=== stderr ===
error[E0107]: missing generics for associated type `Document::Cursor`
 --> /home/runner/work/glacier/glacier/ices/70303.rs:6:10
  |
6 |     type Cursor<'a>: DocCursor<'a>;
  |          ^^^^^^ expected 1 lifetime argument
  |
note: associated type defined here, with 1 lifetime parameter: `'a`
 --> /home/runner/work/glacier/glacier/ices/70303.rs:6:10
  |
6 |     type Cursor<'a>: DocCursor<'a>;
  |          ^^^^^^ --
help: use angle brackets to add missing lifetime argument
  |
6 |     type Cursor<'a><'a>: DocCursor<'a>;
  |                ^^^^

error: aborting due to previous error

For more information about this error, try `rustc --explain E0107`.
==============