$ hyperfine --warmup 3 "/usr/bin/expand moby64.txt"                     "./target/release/coreutils.prev expand moby64.txt" "./target/release/coreutils expand moby64.txt"
Benchmark 1: /usr/bin/expand moby64.txt
  Time (mean ± σ):     116.6 ms ±   4.3 ms    [User: 102.2 ms, System: 14.4 ms]
  Range (min … max):   111.2 ms … 130.6 ms    26 runs

Benchmark 2: ./target/release/coreutils.prev expand moby64.txt
  Time (mean ± σ):     584.1 ms ±   4.3 ms    [User: 482.2 ms, System: 101.8 ms]
  Range (min … max):   578.3 ms … 591.6 ms    10 runs

Benchmark 3: ./target/release/coreutils expand moby64.txt
  Time (mean ± σ):      65.0 ms ±   2.4 ms    [User: 52.2 ms, System: 12.7 ms]
  Range (min … max):    61.6 ms …  70.8 ms    44 runs

Summary
  ./target/release/coreutils expand moby64.txt ran
    1.79 ± 0.09 times faster than /usr/bin/expand moby64.txt
    8.99 ± 0.34 times faster than ./target/release/coreutils.prev expand moby64.txt

Skip an intermittent issue tests/misc/tee (fails in this run but passes in the 'main' branch)
Skip an intermittent issue tests/tail/overlay-headers (fails in this run but passes in the 'main' branch)

Skip an intermittent issue tests/misc/tee (fails in this run but passes in the 'main' branch)
Skip an intermittent issue tests/tail/overlay-headers (fails in this run but passes in the 'main' branch)