Timestamp timezone conversion causes impalad crash

CREATE TABLE temp.t_one
(
  id string,
  test_time timestamp,
  name string,
  PRIMARY KEY(id,test_time)
)
PARTITION BY HASH (id) PARTITIONS 8,
RANGE(test_time)
(
  PARTITION VALUES < '2011-01-01 00:00:00',
  PARTITION '2011-01-01 00:00:00' <= VALUES < '2021-01-01 00:00:00',
  PARTITION '2021-01-01 00:00:00' <= VALUES
)
STORED AS KUDU;

CREATE TABLE temp.t_two
(
  cdate string,
  ctime string
);

insert into temp.t_two values('20190101','00:00:00');

insert into temp.t_one( id, test_time, name )
select '1' as id,concat(cdate,ctime) as test_time,'gogogo' as name
from temp.t_two;

terminate called after throwing an instance of 'boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::gregorian::bad_year> >'
  what():  Year is out of valid range: 1400..10000