[1472208876:712773][38189:0x3ff8077f910], t, eviction-server: cache eviction thread error: WT_NOTFOUND: item not found
[1472208876:713079][38189:0x3ff8077f910], t, eviction-server: the process must exit and restart: WT_PANIC: WiredTiger library panic
[1472208876:713109][38189:0x3ff8077f910], t, eviction-server: aborting WiredTiger library
*** Aborted

Backtrace:
/lib64/libc.so.6(gsignal+0x40)[0x3ff80b3a830]
/lib64/libc.so.6(abort+0x128)[0x3ff80b3c0b8]
??:?(__wt_abort)[0x80176072]
/mnt/workspace/wiredtiger-test-format-stress-zseries/build_posix/../src/support/err.c:530(__wt_illegal_value)[0x800b38b0]
/mnt/workspace/wiredtiger-test-format-stress-zseries/build_posix/../src/evict/evict_lru.c:271(__wt_evict_thread_run)[0x800382e6]
/mnt/workspace/wiredtiger-test-format-stress-zseries/build_posix/../src/support/thread_group.c:25(__wt_thread_run)[0x800c06c4]
/lib64/libpthread.so.0(+0x820a)[0x3ff80e8820a]
/lib64/libc.so.6(+0xfcea2)[0x3ff80bfcea2]