Failure @2 (⟨2, 0⟩): ':'; expected %%% (at line beginning) or expected column at least 1
Final stack:
  [(Lean.Doc.Syntax.ul
    "ul{"
    [(Lean.Doc.Syntax.li
      "*"
      [(Lean.Doc.Syntax.metadata_block
        <missing>
        <missing>)
       <missing>])])]
Remaining: "abc"