1 # This file describes the stage0 compiler that's used to then bootstrap the Rust
2 # compiler itself. For the rustbuild build system, this also describes the
3 # relevant Cargo revision that we're using.
5 # Currently Rust always bootstrap from the previous stable release, and in our
6 # train model this means that the master branch bootstraps from beta, beta
7 # bootstraps from current stable, and stable bootstraps from the previous stable
10 # If you're looking at this file on the master branch, you'll likely see that
11 # rustc bootstraps from `beta-$date`, whereas if you're looking at a source
12 # tarball for a stable release you'll likely see `1.x.0-$date` where `1.x.0` was
15 rustc: 1.12.1-2016-10-20
16 cargo: nightly-2016-08-21