Error: dimensions mismatch between sub-collection 1 and 2.
	got: [2] and: [3]
ERROR in expression 1 of param expr list: { { 0, 1 }, { 1, 2, 3 } }
ERROR in dynamic_param_expr_list::unroll_resolve_rvalues()
ERROR in resolving strict template actuals.
	{ { 0, 1 }, { 1, 2, 3 } }
ERROR resolving template arguments.
ERROR: unable to resolve process-type-reference during unroll.
Error encountered during module::unroll.
ERROR in creating.  Aborting.
