innodb_gis.rtree_split failed in buildbot with server abort

innodb_gis.rtree_split 'innodb'          w1 [ fail ]

        Test ended at 2017-10-29 20:03:20

CURRENT_TEST: innodb_gis.rtree_split

Server [mysqld.1 - pid: 7357, winpid: 7357, exit: 256] failed during test run

Server log from this test:

----------SERVER LOG START-----------

----------SERVER LOG END-------------

mysqltest failed but provided no output

The result from queries just before the failure was:

< snip >

select count(*) from t1 where MBRWithin(t1.c2, @g1);

count(*)

73728

set @g1 = ST_GeomFromText('Polygon((10 10,10 800,800 800,800 10,10 10))');

select count(*) from t1 where MBRWithin(t1.c2, @g1);

count(*)

0

drop index c2 on t1;

create spatial index idx2 on t1(c2);

show create table t1;

Table	Create Table

t1	CREATE TABLE `t1` (

  `c1` int(11) DEFAULT NULL,

  `c2` geometry NOT NULL,

  SPATIAL KEY `idx2` (`c2`)

) ENGINE=InnoDB DEFAULT CHARSET=latin1

set @g1 = ST_GeomFromText('Polygon((0 0,0 100,100 100,100 0,0 0))');

select count(*) from t1 where MBRWithin(t1.c2, @g1);

count(*)

73728

2017-10-29 20:23:22 3078347072 [Note] Plugin 'INNODB_MUTEXES' is disabled.

2017-10-29 20:23:22 3078347072 [Note] Plugin 'INNODB_SYS_SEMAPHORE_WAITS' is disabled.

2017-10-29 20:23:22 3078347072 [Warning] /mnt/buildbot/build/mariadb-10.2.10/sql/mysqld: unknown option '--loose-pam-debug'

/mnt/buildbot/build/mariadb-10.2.10/sql/mysqld: Too many arguments (first extra is 'restart:').

2017-10-29 20:23:22 3078347072 [ERROR] Aborting