Function rustc_typeck::check::coercion::success

pub(in check::coercion) fn success<'tcx>(
    adj: Vec<Adjustment<'tcx>>, 
    target: Ty<'tcx>, 
    obligations: PredicateObligations<'tcx>
) -> InferResult<'tcx, (Vec<Adjustment<'tcx>>, Ty<'tcx>)>

This always returns Ok(...).