https://rust-fuzz.github.io/book
cargo install cargo-fuzz cargo fuzz run fuzz_target_1 cargo fuzz coverage fuzz_target_1 cargo cov -- show fuzz/target/x86_64-unknown-linux-gnu/release/fuzz_target_1 --format=html -instr-profile=fuzz/coverage/fuzz_target_1/coverage.profdata --output-dir=target/debug/fuzz/coverage firefox target/debug/fuzz/coverage/index.html
#cargo install afl # didn't manage to get this to work on NixOS