== sanity-zero test 3a: truncate to a ZEROSTART boundary with an empty prev component ========================================================== 14:17:21 (1790705841)
1+0 records in
1+0 records out
1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.262699 s, 4.0 MB/s
1+0 records in
1+0 records out
1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.21127 s, 5.0 MB/s