bucket_engine.c:831 crash when rebalancing out a node where cluster does not have enough disk space to accomodate vbucket movements

Thread 1 (Thread 1216):
#0 0x00007f9fea3c16b5 in raise () from /lib64/libc.so.6
#1 0x00007f9fea3c2e95 in abort () from /lib64/libc.so.6
#2 0x00007f9fea3ba645 in __assert_fail () from /lib64/libc.so.6
#3 0x00007f9fe8f86092 in get_engine_handle (h=0x7f9fe918b400,
cookie=0x7f9fd0385c28) at bucket_engine.c:831
#4 0x00007f9fe8f866bd in bucket_item_allocate (handle=0x4b4, cookie=0x4c0,
itm=0x6, key=0xffffffffffffffff, nkey=140324776711936,
nbytes=8243121631822625381, flags=0, exptime=0) at bucket_engine.c:1530
#5 0x0000000000410c1f in process_bin_update (c=0x7f9fd0385c28)
at daemon/memcached.c:3110
--Type <return> to continue, or q <return> to quit--
#6 complete_nread_binary (c=0x7f9fd0385c28) at daemon/memcached.c:3349
#7 0x0000000000411791 in complete_nread (c=0x7f9fd0385c28)
at daemon/memcached.c:3471
#8 conn_nread (c=0x7f9fd0385c28) at daemon/memcached.c:5275
#9 0x00000000004073f4 in event_handler (fd=<value optimized out>,
which=<value optimized out>, arg=0x7f9fd0385c28) at daemon/memcached.c:5576
#10 0x00007f9feafbedf9 in event_process_active_single_queue (base=0x14a1930,
flags=0) at event.c:1308
#11 event_process_active (base=0x14a1930, flags=0) at event.c:1375
#12 event_base_loop (base=0x14a1930, flags=0) at event.c:1572
#13 0x0000000000413394 in worker_libevent (arg=0x14a0c30)
at daemon/thread.c:304
#14 0x00007f9fea7087e1 in start_thread () from /lib64/libpthread.so.0
#15 0x00007f9fea46fead in clone () from /lib64/libc.so.6