> Basically, anything you can do in Go, you can also do in Rust, but Rust will let you do it with higher efficiency and with significantly less lines of code.

Then i challenge you. Read 5 GB text file, line by line and search for one string that occur lets say 200k times and count how many times it occurs in file without going into C or using unsafe keyword in Rust, do it as you say more efficient than in Go (faster so less CPU time usage + less memory usage) in less lines of code.