Update to rust nightly 2019-01-31

ci/buildkite.yml

@@ -17,7 +17,7 @@ steps:
   - command: "ci/docker-run.sh solanalabs/rust:1.31.0 ci/test-stable.sh"
     name: "stable"
     timeout_in_minutes: 30
-  - command: "ci/docker-run.sh solanalabs/rust-nightly:2018-12-18 ci/test-coverage.sh"
+  - command: "ci/docker-run.sh solanalabs/rust-nightly:2019-01-31 ci/test-coverage.sh"
     name: "coverage"
     timeout_in_minutes: 30
   # TODO: Fix and re-enable test-large-network.sh

ci/docker-rust-nightly/README.md

@@ -15,7 +15,7 @@ To update the pinned version:
 1. Run `ci/docker-rust-nightly/build.sh` to rebuild the nightly image locally,
    or potentially `ci/docker-rust-nightly/build.sh YYYY-MM-DD` if there's a
    specific YYYY-MM-DD that is desired (default is today's build).
-1. Run `SOLANA_DOCKER_RUN_NOSETUID=1 ci/docker-run.sh --nopull solanalabs/rust-nightly:YYYY-MM-DD ci/test-nightly.sh`
+1. Run `SOLANA_DOCKER_RUN_NOSETUID=1 ci/docker-run.sh --nopull solanalabs/rust-nightly:YYYY-MM-DD ci/test-coverage.sh`
    to confirm the new nightly image builds.  Fix any issues as needed
 1. Run `docker login` to enable pushing images to Docker Hub, if you're authorized.
 1. Run `CI=true ci/docker-rust-nightly/build.sh YYYY-MM-DD` to push the new nightly image to dockerhub.com.

ci/version-check.sh

@@ -21,8 +21,8 @@ require() {
 
 case ${1:-stable} in
 nightly)
-  require rustc 1.33.[0-9]+-nightly +nightly
-  require cargo 1.33.[0-9]+-nightly +nightly
+  require rustc 1.34.[0-9]+-nightly +nightly
+  require cargo 1.34.[0-9]+-nightly +nightly
   ;;
 stable)
   require rustc 1.31.[0-9]+