error: Output ports from `partition` must either be all integer indices or all identifiers.
  --> tests/compile-fail/surface_partition_port_inconsistent.rs:14:22
   |
14 |         my_partition[0] -> for_each(std::mem::drop);
   |                      ^

error: Output ports from `partition` must either be all integer indices or all identifiers.
  --> tests/compile-fail/surface_partition_port_inconsistent.rs:13:22
   |
13 |         my_partition[evens] -> for_each(std::mem::drop);
   |                      ^^^^^