File "w59.ml", line 46, characters 2-43:
46 |   Obj.set_field (Obj.repr o) 0 (Obj.repr 3);
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Warning 59 [flambda-assignment-to-non-mutable-value]: A potential assignment to a non-mutable value was detected 
in this source file.  Such assignments may generate incorrect code 
when using Flambda.
File "w59.ml", line 47, characters 2-43:
47 |   Obj.set_field (Obj.repr p) 0 (Obj.repr 3);
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Warning 59 [flambda-assignment-to-non-mutable-value]: A potential assignment to a non-mutable value was detected 
in this source file.  Such assignments may generate incorrect code 
when using Flambda.
File "w59.ml", line 48, characters 2-43:
48 |   Obj.set_field (Obj.repr q) 0 (Obj.repr 3);
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Warning 59 [flambda-assignment-to-non-mutable-value]: A potential assignment to a non-mutable value was detected 
in this source file.  Such assignments may generate incorrect code 
when using Flambda.
File "w59.ml", line 49, characters 2-43:
49 |   Obj.set_field (Obj.repr r) 0 (Obj.repr 3)
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Warning 59 [flambda-assignment-to-non-mutable-value]: A potential assignment to a non-mutable value was detected 
in this source file.  Such assignments may generate incorrect code 
when using Flambda.
File "w59.ml", line 56, characters 2-7:
56 |   set o
       ^^^^^
Warning 59 [flambda-assignment-to-non-mutable-value]: A potential assignment to a non-mutable value was detected 
in this source file.  Such assignments may generate incorrect code 
when using Flambda.