igt@sysfs_heartbeat_interval@mixed@.* - warn - intel_allocator-WARNING: Error receiving request in thread, ret = -1 [Identifier removed]

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_890/fi-bdw-gvtdvm/igt@sysfs_heartbeat_interval@mixed@vcs1.html

Err	
Starting dynamic subtest: vcs1
(sysfs_heartbeat_interval:945) [thread:952] intel_allocator_msgchannel-WARNING: Error: Identifier removed
(sysfs_heartbeat_interval:945) [thread:952] intel_allocator-WARNING: Error receiving request in thread, ret = -1 [Identifier removed]
Dynamic subtest vcs1: SUCCESS (5.192s)
Subtest mixed: FAIL (20.541s)