error: Only `extern` blocks, structs and enums are supported.
 --> tests/ui/invalid-module-item.rs:6:5
  |
6 |     use std;
  |     ^^^^^^^^

error: Only `extern` blocks, structs and enums are supported.
 --> tests/ui/invalid-module-item.rs:7:5
  |
7 |     fn foo() {}
  |     ^^^^^^^^^^^