function symbol 'void foo(struct leaf*)' changed
  type 'void(struct leaf*)' changed
    parameter 1 type 'struct leaf*' changed
      pointed-to type 'struct leaf' changed

type 'struct leaf' changed
  member changed from 'unsigned int numbers[2]' to 'int numbers[2]'
    type changed from 'unsigned int[2]' to 'int[2]'
      element type changed from 'unsigned int' to 'int'

exit code 4