+++ /dev/null
----
-title: "Miri available as rustup component"
-categories: rust
----
-
-Running your unsafe code test suite in Miri has just gotten even easier: Miri is now available as a `rustup` component!
-Huge thanks to @oli-obk and @mati865 who made this happen.
-
-Miri can run your test suite in a very slow, interpreted mode that enables it to test for undefined behavior: if an out-of-bounds array access happens, uninitialized memory gets used the wrong way or a dangling raw pointer gets dereferenced, Miri will notice and tell you.
-However, Miri cannot execute all programs, and it also cannot detect all forms of misbehavior.
-For further information, please check out [Miri's README](https://github.com/rust-lang/miri#readme).
-
-<!-- MORE -->
-
-Installation (only on nightly toolchains) is now as simple as
-```
-rustup component add miri
-```
-After installing Miri, you can run your crate's test suite in it with `cargo miri test`.
-I suggest you do `cargo clean` first because Miri needs to build its own standard library, and rustc can get confused when crates built with different standard libraries get mixed.
-If you have `#[should_panic]` tests, try `cargo miri test -- -- -Zunstable-options --exclude-should-panic` because Miri currently aborts execution on a panic.
-
-There's a lot of work left to be done, in particular to enable more programs to execute in Miri.
-Still, slowly but steadily, my [vision]({% post_url 2017-05-23-internship-starting %}) of Miri as a practical tool to test for undefined behavior is actually becoming reality: [the standard library](https://github.com/RalfJung/miri-test-libstd) and [hashbrown](https://github.com/Amanieu/hashbrown/) have their test suites running in Miri under CI.
-I cannot express how glad it makes me to be able to contribute to the Rust ecosystem becoming a bit safer.
-
-Maybe your crate is next?
projects / web.git / blobdiff