How was this stuff compiled? There's no way to reproduce these numbers without compiler flags, at least.
For example, with "rustc fib.rs", I get 10 seconds as a runtime. With "rustc -O fib.rs", to turn on optimizations, I get 0.034s. This makes me pretty sure that they did not turn on optimizations, which means the Rust numbers are very misleading, and possibly, the other languages as well.
For example, with "rustc fib.rs", I get 10 seconds as a runtime. With "rustc -O fib.rs", to turn on optimizations, I get 0.034s. This makes me pretty sure that they did not turn on optimizations, which means the Rust numbers are very misleading, and possibly, the other languages as well.