== sanity-zero test 3a: truncate to a ZEROSTART boundary with an empty prev component ========================================================== 14:37:36 (1789411056)
1+0 records in
1+0 records out
1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.273765 s, 3.8 MB/s
1+0 records in
1+0 records out
1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.267426 s, 3.9 MB/s