=================================================================
==24283==ERROR: AddressSanitizer: SEGV on unknown address 0x7f19da1ee837 (pc 0x00000044eb13 sp 0x7f19dfcf3570 bp 0x000000000001 T4)
    #0 0x44eb12 in __asan::Deallocate(void*, __sanitizer::StackTrace*, __asan::AllocType) (/fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/test/format/t+0x44eb12)
    WT-1 0x48b5bb in __interceptor_free (/fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/test/format/t+0x48b5bb)
    WT-2 0x664a7b in __wt_free_int /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/os_posix/os_alloc.c:237
    WT-3 0x8ccb90 in __wt_free_ref /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/btree/bt_discard.c:255
    WT-4 0x8ce37a in __wt_free_ref_index /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/btree/bt_discard.c:281
    WT-5 0x8cb38e in __free_page_int /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/btree/bt_discard.c:211
    WT-6 0x8c7b3e in __wt_page_out /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/btree/bt_discard.c:116
    WT-7 0x8c6a89 in __wt_ref_out /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/btree/bt_discard.c:32
    WT-8 0x5b6d7d in __wt_rec_page_clean_update /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/evict/evict_page.c:134
    WT-9 0xb6b243 in __wt_evict_file /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/evict/evict_file.c:118
    WT-10 0x9ab6e7 in __wt_cache_op /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/btree/bt_sync.c:227
    WT-11 0x850689 in __wt_checkpoint_close /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/txn/txn_ckpt.c:978
    WT-12 0xa62188 in __wt_conn_btree_sync_and_close /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/conn/conn_dhandle.c:275
    WT-13 0xa6def1 in __wt_conn_dhandle_close_all /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/conn/conn_dhandle.c:630
    WT-14 0x7747d7 in __drop_file /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/schema/schema_drop.c:31
    WT-15 0x771a9d in __wt_schema_drop /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/schema/schema_drop.c:174
    WT-16 0xbd7607 in __lsm_drop_file /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/lsm/lsm_work_unit.c:494
    WT-17 0xbd486f in __wt_lsm_free_chunks /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/lsm/lsm_work_unit.c:584
    WT-18 0x647ea6 in __lsm_worker_general_op /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/lsm/lsm_worker.c:71
    WT-19 0x645d04 in __lsm_worker /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/lsm/lsm_worker.c:121