Comment Diverse double-compiling (Score 1) 125
Do you have the code for the compiler, and compile that yourself too?
If you have three different compilers for a language, and you bootstrap a compiler using all three of them, the first generation (e.g. GCC compiled with QuestionableCC, ShadyCC, or SlopCC) should be functionally identical, and the second generation (GCC compiled with GCC, which was compiled with the other compiler) should be bit-identical. See "Fully Countering Trusting Trust through Diverse Double-Compiling" by David A. Wheeler. Some people have trouble trusting Rust because only the latest stable rustc can compile the latest stable rustc.