ICE after rust update

[SirVer]

We run travis CRON jobs over our master branch in this repository. This started failing 2 days ago for rust beta and rust nightly (rust stable is still green). Since travis did not change anything, no commits happened, and it neatly coincides with a rust train leaving, I suspect rust to be the culprit. It could also be in prost, so I filed https://github.com/danburkert/prost/issues/67. Unfortunately, I cannot repro the ICE on my Mac machine.

CI ICEs after building and when running this build script that compiles a protobuf using prost.

This is the first failing run and this is the last successful run 4 days ago.

The versions used in the successful beta run are:

rustc 1.23.0-beta.2 (c9107ee93 2017-12-08)
$ rustup --version
rustup 1.8.0 (cb2d14862 2017-12-17)
$ cargo --version
cargo 0.24.0-beta (6a1aee066 2017-11-18)

The versions used in the failing beta run are:

rustc 1.24.0-beta.1 (5b496b726 2018-01-02)
$ rustup --version
rustup 1.8.0 (cb2d14862 2017-12-17)
$ cargo --version
cargo 0.25.0-beta (a88fbace4 2017-12-29)

The nightly CI will probably have tighter version bounds.

[kennytm]

Range of nightly: 9389e23...687d3d1

I guess it is a duplicate of #47175.

[SirVer]

Yes, that is it. Closing as duplicate.