== sanity-zero test 3a: truncate to a ZEROSTART boundary with an empty prev component ========================================================== 14:37:18 (1789411038)
1+0 records in
1+0 records out
1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.142052 s, 7.4 MB/s
1+0 records in
1+0 records out
1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.201035 s, 5.2 MB/s