Stress test failure heap use after free by eviction

==6099==ERROR: AddressSanitizer: heap-use-after-free on address 0x61b00231ce9c at pc 0x5c99a5 bp 0x7f77a1ffd1f0 sp 0x7f77a1ffd1e8

READ of size 4 at 0x61b00231ce9c thread T1

    #0 0x5c99a4 in __evict_walk /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/evict/evict_lru.c:967

    #1 0x5c5c7d in __evict_lru_walk /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/evict/evict_lru.c:790

    #2 0x5bea6a in __evict_pass /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/evict/evict_lru.c:534

    #3 0x5ac212 in __evict_server /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/evict/evict_lru.c:168

    #4 0x37ce207ee4 in start_thread (/lib64/libpthread.so.0+0x37ce207ee4)

    #5 0x37cdaf4d1c in __clone (/lib64/libc.so.6+0x37cdaf4d1c)

0x61b00231ce9c is located 28 bytes inside of 1664-byte region [0x61b00231ce80,0x61b00231d500)

freed by thread T0 here:

    #0 0x48e2a9 in free (/home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/test/format/t+0x48e2a9)

    #1 0x694f3f in __wt_free_int /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/os_posix/os_alloc.c:248

    #2 0xb3076f in __wt_conn_dhandle_discard_single /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/conn/conn_dhandle.c:772

    #3 0xb32c5e in __wt_conn_dhandle_discard /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/conn/conn_dhandle.c:805

    #4 0x53f457 in __wt_connection_close /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/conn/conn_open.c:121

    #5 0x4f793c in __conn_close /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/conn/conn_api.c:837

    #6 0x4db7f0 in wts_close /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/test/format/../../../test/format/wts.c:418

    #7 0x4cb6f2 in main /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/test/format/../../../test/format/t.c:223

    #8 0x37cda21d64 in __libc_start_main (/lib64/libc.so.6+0x37cda21d64)