error[E06002]: use of unassigned variable
   ┌─ tests/move_check/translated_ir_tests/move/commands/join_failure.move:13:21
   │
 8 │             R{ f } = move r;
   │                      ------
   │                      │
   │                      The value of 'r' might have been previously moved here.
   │                      Suggestion: use 'copy r' to avoid the move.
   ·
13 │         R{ f: _ } = move r;
   │                     ^^^^^^ Invalid usage of previously moved variable 'r'.