v/vlib/v/checker/tests/invalid_insert_references_test.out

vlib/v/checker/tests/invalid_insert_references_test.vv:8:7: error: cannot append `int literal` to `[]&int`
    6 |     a << &c
    7 |     c = 2
    8 |     a << 1
      |          ^
    9 |     println(a)
   10 | }