Please check the build logs for more information.
See Builds for ideas on how to fix a failed build, or Metadata for how to configure docs.rs builds.
If you believe this is docs.rs' fault, open an issue.
What is it?
Fuzz testing is a software testing technique used to find security and stability issues by providing pseudo-random data as input to the software. AFLplusplus is a popular, effective, and modern fuzz testing tool based on AFL. This library, afl.rs, allows one to run AFLplusplus on code written in the Rust programming language.
Documentation
Documentation can be found in the Rust Fuzz Book.
What does it look like?
Screen recording of AFL running on Rust code.
lazy_static variables
lazy_static variables present problems for AFL's persistent mode, which afl.rs uses. Such variables can cause AFL to give incorrectly low stability reports, or fail to report timeouts, for example.
To address such problems, rust-fuzz provides a "resettable" version of lazy_static. To use it, make the following two changes to your target's Cargo.toml file.
- Add a
[patch.crates-io]section and override thelazy_staticdependency with the rust-fuzz version:[] = { = "https://github.com/rust-fuzz/resettable-lazy-static.rs" } - Enable the
reset_lazy_staticfeature on afl.rs:[] = { = "*", = ["reset_lazy_static"] }