[INFO] cloning repository https://github.com/ryandv/advent_of_code_2018
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ryandv/advent_of_code_2018" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryandv%2Fadvent_of_code_2018", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryandv%2Fadvent_of_code_2018'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4efc8b55fda24d07e87fb1a475d84ab236a6067e
[INFO] testing ryandv/advent_of_code_2018 against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryandv%2Fadvent_of_code_2018" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ryandv/advent_of_code_2018 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ryandv/advent_of_code_2018
[INFO] finished tweaking git repo https://github.com/ryandv/advent_of_code_2018
[INFO] tweaked toml for git repo https://github.com/ryandv/advent_of_code_2018 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/ryandv/advent_of_code_2018 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded try_opt v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e9b6fc8c63bbe666e226eb0b0ac41221d23f7647294414a18964a7a358ca7071
[INFO] running `Command { std: "docker" "start" "-a" "e9b6fc8c63bbe666e226eb0b0ac41221d23f7647294414a18964a7a358ca7071", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9b6fc8c63bbe666e226eb0b0ac41221d23f7647294414a18964a7a358ca7071", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9b6fc8c63bbe666e226eb0b0ac41221d23f7647294414a18964a7a358ca7071", kill_on_drop: false }`
[INFO] [stdout] e9b6fc8c63bbe666e226eb0b0ac41221d23f7647294414a18964a7a358ca7071
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 61e38ee25bb22f1f718cc0f757eb4d1d79e7bee324a58b884b43b0b2f797139b
[INFO] running `Command { std: "docker" "start" "-a" "61e38ee25bb22f1f718cc0f757eb4d1d79e7bee324a58b884b43b0b2f797139b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling try_opt v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling regex-syntax v0.6.4
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling chrono v0.4.9
[INFO] [stderr]    Compiling advent_of_code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]   --> src/util/bitboard.rs:28:14
[INFO] [stdout]    |
[INFO] [stdout] 28 |             .intersperse(String::from("\n"))
[INFO] [stdout]    |              ^^^^^^^^^^^ multiple `intersperse` found
[INFO] [stdout]    |
[INFO] [stdout]    = note: candidate #1 is defined in an impl of the trait `Iterator` for the type `Map<I, F>`
[INFO] [stdout]    = note: candidate #2 is defined in an impl of the trait `Itertools` for the type `T`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]    |
[INFO] [stdout] 23 ~         let output: String = Iterator::intersperse(acc
[INFO] [stdout] 24 +             .chars()
[INFO] [stdout] 25 +             .chunks(self.size)
[INFO] [stdout] 26 +             .into_iter()
[INFO] [stdout] 27 +             .map(|mut chunk| chunk.join("")), String::from("\n"))
[INFO] [stdout]    |
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]    |
[INFO] [stdout] 23 ~         let output: String = Itertools::intersperse(acc
[INFO] [stdout] 24 +             .chars()
[INFO] [stdout] 25 +             .chunks(self.size)
[INFO] [stdout] 26 +             .into_iter()
[INFO] [stdout] 27 +             .map(|mut chunk| chunk.join("")), String::from("\n"))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `advent_of_code` due to 2 previous errors
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "61e38ee25bb22f1f718cc0f757eb4d1d79e7bee324a58b884b43b0b2f797139b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61e38ee25bb22f1f718cc0f757eb4d1d79e7bee324a58b884b43b0b2f797139b", kill_on_drop: false }`
[INFO] [stdout] 61e38ee25bb22f1f718cc0f757eb4d1d79e7bee324a58b884b43b0b2f797139b