memcached crashed with exit 255 after delete default bucket in windows

Install couchbase server 1.8.1-871 on 10 windows server 2008 R2 64 bit
Create a 10 nodes cluster
Create default bucket.
Delete default bucket. See memcached crash with exit 255

Port server memcached on node 'ns_1@10.3.2.10' exited with status 255. Restarting. Messages: Extension support isn't implemented in this version of bucket_engine
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.12 - Sending TAP_OPAQUE with command "opaque_enable_auto_nack" and vbucket 0
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.12 - Sending TAP_OPAQUE with command "enable_checkpoint_sync" and vbucket 0
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.11 - Sending TAP_OPAQUE with command "opaque_enable_auto_nack" and vbucket 0
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.11 - Sending TAP_OPAQUE with command "enable_checkpoint_sync" and vbucket 0
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.75 - Sending TAP_OPAQUE with command "opaque_enable_auto_nack" and vbucket 0
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.75 - Sending TAP_OPAQUE with command "enable_checkpoint_sync" and vbucket 0
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.76 - Sending TAP_OPAQUE with command "opaque_enable_auto_nack" and vbucket 0
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.76 - Sending TAP_OPAQUE with command "enable_checkpoint_sync" and vbucket 0
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.77 - Sending TAP_OPAQUE with command "opaque_enable_auto_nack" and vbucket 0
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.77 - Sending TAP_OPAQUE with command "enable_checkpoint_sync" and vbucket 0
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.16 - Sending TAP_OPAQUE with command "opaque_enable_auto_nack" and vbucket 0
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.16 - Sending TAP_OPAQUE with command "enable_checkpoint_sync" and vbucket 0
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.78 - Sending TAP_OPAQUE with command "opaque_enable_auto_nack" and vbucket 0
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.78 - Sending TAP_OPAQUE with command "enable_checkpoint_sync" and vbucket 0
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.79 - Sending TAP_OPAQUE with command "opaque_enable_auto_nack" and vbucket 0
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.79 - Sending TAP_OPAQUE with command "enable_checkpoint_sync" and vbucket 0
TAP (Producer) eq_tapq:replication_ns_1@10.3.121.185 - Sending TAP_OPAQUE with command "opaque_enable_auto_nack" and vbucket 0
TAP (Producer) eq_tapq:replication_ns_1@10.3.121.185 - Sending TAP_OPAQUE with command "enable_checkpoint_sync" and vbucket 0
TAP (Consumer) eq_tapq:anon_3 - disconnected
Schedule cleanup of "eq_tapq:anon_3"
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.79 - disconnected, keep alive for 300 seconds
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.78 - disconnected, keep alive for 300 seconds
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.77 - disconnected, keep alive for 300 seconds
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.76 - disconnected, keep alive for 300 seconds
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.16 - disconnected, keep alive for 300 seconds
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.75 - disconnected, keep alive for 300 seconds
TAP (Consumer) eq_tapq:anon_1 - disconnected
Schedule cleanup of "eq_tapq:anon_1"
TAP (Producer) eq_tapq:replication_ns_1@10.3.121.185 - disconnected, keep alive for 300 seconds
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.12 - disconnected, keep alive for 300 seconds
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.11 - disconnected, keep alive for 300 seconds
TAP (Consumer) eq_tapq:anon_5 - disconnected
Schedule cleanup of "eq_tapq:anon_5"
TAP (Consumer) eq_tapq:anon_9 - disconnected
Schedule cleanup of "eq_tapq:anon_9"
Shutting down tap connections!
Schedule cleanup of "eq_tapq:replication_ns_1@10.3.2.12"
Schedule cleanup of "eq_tapq:replication_ns_1@10.3.2.11"
Schedule cleanup of "eq_tapq:replication_ns_1@10.3.2.75"
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.12 - Clear the tap queues by force
Schedule cleanup of "eq_tapq:replication_ns_1@10.3.2.76"
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.11 - Clear the tap queues by force
Schedule cleanup of "eq_tapq:replication_ns_1@10.3.2.77"
Schedule cleanup of "eq_tapq:replication_ns_1@10.3.2.16"
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.75 - Clear the tap queues by force
Schedule cleanup of "eq_tapq:replication_ns_1@10.3.2.78"
Schedule cleanup of "eq_tapq:replication_ns_1@10.3.2.79"
Schedule cleanup of "eq_tapq:replication_ns_1@10.3.121.185"
Schedule cleanup of "eq_tapq:anon_2"
Schedule cleanup of "eq_tapq:anon_4"
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.76 - Clear the tap queues by force
Schedule cleanup of "eq_tapq:anon_6"
Schedule cleanup of "eq_tapq:anon_7"
Schedule cleanup of "eq_tapq:anon_8"
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.77 - Clear the tap queues by force
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.78 - Clear the tap queues by force
TAP (Producer) eq_tapq:replication_ns_1@10.3.121.185 - Clear the tap queues by force
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.16 - Clear the tap queues by force
TAP (Producer) eq_tapq:replication_ns_1@10.3.2.79 - Clear the tap queues by force

This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.