[INFO] updating cached repository https://github.com/ollieatkinson/2017_sky_christmas_challenge
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4763aee435f5c5306358a0eebfeb85fdc58ee8b8
[INFO] testing ollieatkinson/2017_sky_christmas_challenge against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Follieatkinson%2F2017_sky_christmas_challenge" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ollieatkinson/2017_sky_christmas_challenge on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ollieatkinson/2017_sky_christmas_challenge
[INFO] finished tweaking git repo https://github.com/ollieatkinson/2017_sky_christmas_challenge
[INFO] tweaked toml for git repo https://github.com/ollieatkinson/2017_sky_christmas_challenge written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/ollieatkinson/2017_sky_christmas_challenge already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] a17f395a27cd826416812faedd1e29ff357b54f1157e7c8c1206571f03847dd2
[INFO] running `"docker" "start" "-a" "a17f395a27cd826416812faedd1e29ff357b54f1157e7c8c1206571f03847dd2"`
[INFO] [stderr]    Compiling xmas_challenge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: environment variable `PRESENTS` not defined
[INFO] [stderr]  --> src/main.rs:7:17
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let input = env!("PRESENTS");
[INFO] [stderr]   |                 ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `xmas_challenge`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "a17f395a27cd826416812faedd1e29ff357b54f1157e7c8c1206571f03847dd2"`
[INFO] running `"docker" "rm" "-f" "a17f395a27cd826416812faedd1e29ff357b54f1157e7c8c1206571f03847dd2"`
[INFO] [stdout] a17f395a27cd826416812faedd1e29ff357b54f1157e7c8c1206571f03847dd2