StacktraceTop:op_copy (self=0x1d351d0, op_helper (self=<value optimized out>, e=0x1b329f0, op_copy (self=0x1d351d0, op_helper (self=0x1d35e20, e=0x1b329f0, from=0x0, op_copy (self=0x1d351d0,
StacktraceTop: op_copy (self=0x1d351d0,
op_helper (self=<value optimized out>, e=0x1b329f0,
op_copy (self=0x1d351d0,
op_helper (self=0x1d35e20, e=0x1b329f0, from=0x0,
op_copy (self=0x1d351d0,