Andrey Lushnikov 4961c2ddbb
devops(firefox): fixate rust and cbindgen version (#3223)
Firefox buildchain does not fixate `rust` and `cbindgen` versions,
so we want to fixate them on our end.

A table with matching rust version for every firefox version can
be found at [Rust Update Policy for Firefox](https://wiki.mozilla.org/Rust_Update_Policy_for_Firefox).

Additionally, there are checks in `mozbuild` for the minimum
rust version and minimum `cbindgen` version.
2020-07-30 09:59:39 -07:00
..
2019-11-19 10:58:15 -08:00