== sanity-zero test 3a: truncate to a ZEROSTART boundary with an empty prev component ========================================================== 14:28:08 (1790706488)
1+0 records in
1+0 records out
1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.216596 s, 4.8 MB/s
1+0 records in
1+0 records out
1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.142375 s, 7.4 MB/s