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Rustup components availability tool

A library and some binaries to monitor rustup components availability history on different platforms.

The library part

Please refer to for more info on the library, and to the source code of the binary crate for usage hints.

The Web part

Under the web directory you will find a binary crate that's capable of producing web-pages like

Machine-readable information on the latest availability can be fetched on a per-component-per-target basis, i.e.$target/$package where $target stands for a target host architecture, like x86_64-unknown-linux-gnu, and $package stands for a package name, like rls or rust-src. For example, getting the date when miri was available for the last time on x86_64-apple-darwin is as simple as running the following command:

$ curl

More information (in a JSON format) can be found at a similar location with a .json suffix. This data will include at least the last date the package was available (if it ever was) and whether the package was available over a configurable range of dates. E.g.,

$ curl

Run the binary with a --help flag to see available options.

More info is coming :)


Licensed under either of

at your option.


Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

License: MIT/Apache-2.0