QA output created by 220
== Creating huge file ==
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=564049465049088
== Populating refcounts ==
wrote 2097152/2097152 bytes at offset 4194304
2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2097152/2097152 bytes at offset 8388608
2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2097152/2097152 bytes at offset 10485760
2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2097152/2097152 bytes at offset 12582912
2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2097152/2097152 bytes at offset 14680064
2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2097152/2097152 bytes at offset 16777216
2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2097152/2097152 bytes at offset 18874368
2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2097152/2097152 bytes at offset 20971520
2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2097152/2097152 bytes at offset 23068672
2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2097152/2097152 bytes at offset 25165824
2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2097152/2097152 bytes at offset 27262976
2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2097152/2097152 bytes at offset 29360128
2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2097152/2097152 bytes at offset 31457280
2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2097152/2097152 bytes at offset 33554432
2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2097152/2097152 bytes at offset 35651584
2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2097152/2097152 bytes at offset 37748736
2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
== Checking file before ==
No errors were found on the image.
image size 39845888
== Trying to write compressed cluster ==
write failed: Input/output error
image size 562949957615616
== Writing normal cluster ==
wrote 2097152/2097152 bytes at offset 0
2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
== Checking file after ==
wrote 1048576/1048576 bytes at offset 5242880
1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 31457280/31457280 bytes at offset 8388608
30 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

8388589 leaked clusters were found on the image.
This means waste of disk space, but no harm to data.
*** done