== sanity-zero test 3a: truncate to a ZEROSTART boundary with an empty prev component ========================================================== 14:29:34 (1790706574)
1+0 records in
1+0 records out
1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.175487 s, 6.0 MB/s
1+0 records in
1+0 records out
1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.163512 s, 6.4 MB/s