[INFO] updating cached repository https://github.com/josephlr/rust-aoc
[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] 2a2cfb653e80c78a3fb31635bcf8150d38dca939
[INFO] testing josephlr/rust-aoc against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjosephlr%2Frust-aoc" "work/builds/worker-6/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/josephlr/rust-aoc 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/josephlr/rust-aoc
[INFO] finished tweaking git repo https://github.com/josephlr/rust-aoc
[INFO] tweaked toml for git repo https://github.com/josephlr/rust-aoc written to work/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/josephlr/rust-aoc 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-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/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] c260c597a04bc4ddfa8e6ddbeb892887555763d172a6518696cda450141a91ce
[INFO] running `"docker" "start" "-a" "c260c597a04bc4ddfa8e6ddbeb892887555763d172a6518696cda450141a91ce"`
[INFO] [stderr]    Compiling intrusive-collections v0.7.8
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling nom v4.1.1
[INFO] [stderr]    Compiling rust-aoc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/main.rs:1:1
[INFO] [stderr]    |
[INFO] [stderr] 1  | / #![feature(
[INFO] [stderr] 2  | |     nll,
[INFO] [stderr] 3  | |     never_type,
[INFO] [stderr] 4  | |     specialization,
[INFO] [stderr] ...  |
[INFO] [stderr] 9  | |     try_trait
[INFO] [stderr] 10 | | )]
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/y2018/day9.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | intrusive_adapter!(MyAdapter = Box<Node>: Node { link: Link });
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `rust-aoc`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "c260c597a04bc4ddfa8e6ddbeb892887555763d172a6518696cda450141a91ce"`
[INFO] running `"docker" "rm" "-f" "c260c597a04bc4ddfa8e6ddbeb892887555763d172a6518696cda450141a91ce"`
[INFO] [stdout] c260c597a04bc4ddfa8e6ddbeb892887555763d172a6518696cda450141a91ce