And just to help the lazy people, after making the benchmarked loads equivalent, the results are:

hyperfine go/out 'node javascript/main.js' rust/target/release/rust 1 Benchmark #1: go/out

  Time (mean ± σ):      1.888 s ±  0.013 s    [User: 2.040 s, System: 0.045 s]

  Range (min … max):    1.875 s …  1.918 s    10 runs

Benchmark #2: node javascript/main.js

  Time (mean ± σ):      4.257 s ±  0.033 s    [User: 4.295 s, System: 0.042 s]

  Range (min … max):    4.221 s …  4.338 s    10 runs

Benchmark #3: rust/target/release/rust

  Time (mean ± σ):     874.1 ms ±  50.8 ms    [User: 5.688 s, System: 0.830 s]

  Range (min … max):   813.5 ms … 1001.9 ms    10 runs

Summary

  'rust/target/release/rust' ran

    2.16 ± 0.13 times faster than 'go/out'

    4.87 ± 0.29 times faster than 'node javascript/main.js'