[INFO] cloning repository https://github.com/santhoshselvan/advent-of-code
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/santhoshselvan/advent-of-code" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsanthoshselvan%2Fadvent-of-code", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsanthoshselvan%2Fadvent-of-code'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ec51fa7d53859e06843275389e3226c30e44c3f1
[INFO] documenting santhoshselvan/advent-of-code against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsanthoshselvan%2Fadvent-of-code" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/santhoshselvan/advent-of-code on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/santhoshselvan/advent-of-code
[INFO] finished tweaking git repo https://github.com/santhoshselvan/advent-of-code
[INFO] tweaked toml for git repo https://github.com/santhoshselvan/advent-of-code written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/santhoshselvan/advent-of-code already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99bfed82b9acc1178d07a7eded02694812a8a701c2f8ed0adb563c1dda76c5ee
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "99bfed82b9acc1178d07a7eded02694812a8a701c2f8ed0adb563c1dda76c5ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99bfed82b9acc1178d07a7eded02694812a8a701c2f8ed0adb563c1dda76c5ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99bfed82b9acc1178d07a7eded02694812a8a701c2f8ed0adb563c1dda76c5ee", kill_on_drop: false }`
[INFO] [stdout] 99bfed82b9acc1178d07a7eded02694812a8a701c2f8ed0adb563c1dda76c5ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "RUSTDOCFLAGS=--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83d1ca41b3da44f62bc75259486f96df96ce1702ee14bdb1b35f16923378e438
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "83d1ca41b3da44f62bc75259486f96df96ce1702ee14bdb1b35f16923378e438", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling rayon-core v1.6.1
[INFO] [stderr]     Checking svg v0.5.12
[INFO] [stderr]     Checking queues v1.1.0
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking num_cpus v1.11.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking png v0.15.2
[INFO] [stderr]     Checking rayon v1.2.1
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking libmath v0.2.1
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking permutator v0.3.3
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking tiff v0.3.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.18
[INFO] [stderr]     Checking plotlib v0.4.0
[INFO] [stderr]     Checking image v0.22.3
[INFO] [stderr]     Checking pistoncore-input v0.28.0
[INFO] [stderr]     Checking pistoncore-window v0.44.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.49.0
[INFO] [stderr]     Checking piston v0.49.0
[INFO] [stderr]     Checking advent-of-code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting advent-of-code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: static is never used: `DEBUG_SHOW_INPUT_OUTPUT`
[INFO] [stdout]  --> src/intcode.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | static DEBUG_SHOW_INPUT_OUTPUT: bool = false;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `memory_string`
[INFO] [stdout]    --> src/intcode.rs:224:8
[INFO] [stdout]     |
[INFO] [stdout] 224 |     fn memory_string(&self) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `advent-of-code`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day06 src/bin/day06.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern intcode=/opt/rustwide/target/debug/deps/libintcode-d21092a94843167c.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-2af768ce850e7187.rmeta --extern image=/opt/rustwide/target/debug/deps/libimage-88cb163aa3c0f9c0.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-5ad68357c26dda65.rmeta --extern math=/opt/rustwide/target/debug/deps/libmath-7e9bc3553451aa7a.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-f96ba0118540bef9.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-033e481f2f62a176.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-1d4e95c5a8748d93.rmeta --extern permutator=/opt/rustwide/target/debug/deps/libpermutator-29cb257ced21d682.rmeta --extern piston=/opt/rustwide/target/debug/deps/libpiston-54106314a11de47e.rmeta --extern plotlib=/opt/rustwide/target/debug/deps/libplotlib-03b0fd3d43bd4138.rmeta --extern queues=/opt/rustwide/target/debug/deps/libqueues-22d08e1f6c690207.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-ef03d8c34c9cc7a6.rmeta --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "83d1ca41b3da44f62bc75259486f96df96ce1702ee14bdb1b35f16923378e438", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83d1ca41b3da44f62bc75259486f96df96ce1702ee14bdb1b35f16923378e438", kill_on_drop: false }`
[INFO] [stdout] 83d1ca41b3da44f62bc75259486f96df96ce1702ee14bdb1b35f16923378e438