"Stronger" is absolute bullshit. No data race prevention. No intra-object protection. Mandatory GC, and 5x the compute cost. Nothing like a statically safe language.
It's coreutils, there shouldn't be any threads to be data racing.
Haven't threads been one of the reason some core util got faster?
Only GNU sort uses threads. There is still some room for improvement there, if anyone wants to take a shot at it. :)
I think I saw the Rust based implementations sometimes used a separate thread for background tasks like statistics reporting. Not much additional in the way of "directly" using threads, but I wonder how many could actually be any faster with direct threading.