1 try 1
   2 Error: try 1 thrown in line 33
   3 finally 1
   4 try 2
   5 finally 2
   6 Error: try 2 thrown in line 43
   7 try 3
   8 finally 3
   9 try 4
  10 Error: try 4 thrown in line 59
  11 finally 4
  12 try 5
  13 rethrow 5
  14 finally 5
  15 Error: try 5 thrown in line 74
  16 try 6
  17 finally 6