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Rust supports reproducible builds. There are options to remap file prefixes. This is the same situation as gcc and clang.

another thing that ruins reproducible builds is date stamps in the executable. Microsoft's C++ compiler has that issue. I'm not sure how common that is in other compilers

Rust is working toward fully reproducible builds; you can see outstanding issues here: https://github.com/rust-lang/rust/labels/A-reproducibility . The compiler already has options to enable many sources of variability. I've had success with reproducible builds for WASM.

The article actually says that you cnn work around the issue using containers.