How to find error rows in bulk insert?
To locate the rows you want to see, you must do two things:

change the way you create the table
change the way you load data into the table

Why Change the Way You Create the Table ???
When you did this
create table tgt as select * from src;

You create the tgt table without any indexes. You can verify this by running
show create table src \G
show create table tgt \G

and you will see src with its indexes and tgt without them.
Consequently, with no indexes around, the table load would be the fastest. If you at least had a primary key. you could navigate the table by some numeric id column.
So, to create table with the indexes in place, do this:
create table tgt like src;

You could then run
show create table src \G
show create table tgt \G

and see that they are the same in structure.
Why Change the Way You Load Data into the Table ???
You could just start loading like this
insert into tgt select * from src;

When the load is done, you could run
SELECT * FROM tgt WHERE id = 265975;
SELECT * FROM tgt WHERE id = 265976;

You could get an glimpse at when the row looks like but the created_timestamp may not be populated. If it is populated correctly, then the problem is essentially solved.
Another Way to See Which Row Without Loading Data
You could isolate which rows have an issue with the created_timestamp by doing something else
# mysqldump --skip-extended-insert mydb src &gt; dumpfile.txt
# head -265976 dumpfile.txt | tail -2

This will show you the rows that would have been inserted.
This is all the help I can suggest since I do not know what the table structures are.