================ Step #1 =================

Compiling files:
  src/Base.kt
  src/use.kt
End of files
Exit code: ABORT
------------------------------------------
COMPILATION FAILED
'when' expression must be exhaustive, add necessary 'is C' branch or 'else' branch instead

================ Step #2 =================

Compiling files:
  src/use.kt
End of files
Exit code: OK