[INFO] cloning repository https://github.com/wackywendell/adventofcode2019
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wackywendell/adventofcode2019" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwackywendell%2Fadventofcode2019", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwackywendell%2Fadventofcode2019'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] de5982a19735d9642d22809fa1a7208018261f77
[INFO] documenting wackywendell/adventofcode2019 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwackywendell%2Fadventofcode2019" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wackywendell/adventofcode2019 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wackywendell/adventofcode2019
[INFO] finished tweaking git repo https://github.com/wackywendell/adventofcode2019
[INFO] tweaked toml for git repo https://github.com/wackywendell/adventofcode2019 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/wackywendell/adventofcode2019 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded test-env-log v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bcd39f4dd6c356b0cdcc945fc50383ea7345a5c6f93a74656fc53628fe96293a
[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" "bcd39f4dd6c356b0cdcc945fc50383ea7345a5c6f93a74656fc53628fe96293a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bcd39f4dd6c356b0cdcc945fc50383ea7345a5c6f93a74656fc53628fe96293a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcd39f4dd6c356b0cdcc945fc50383ea7345a5c6f93a74656fc53628fe96293a", kill_on_drop: false }`
[INFO] [stdout] bcd39f4dd6c356b0cdcc945fc50383ea7345a5c6f93a74656fc53628fe96293a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ae9fbef8e738958dae8a42bcfa9dbc0d5f3da4476b5f9242d9128634f3b8f98
[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" "6ae9fbef8e738958dae8a42bcfa9dbc0d5f3da4476b5f9242d9128634f3b8f98", kill_on_drop: false }`
[INFO] [stderr]     Checking text_io v0.1.8
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking num-complex v0.3.0
[INFO] [stderr]     Checking num v0.3.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking aoc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting aoc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: Could not document `aoc`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name aoc src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-23dff0c64805ed62.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-3c2f0cf696046bd1.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-0ad5866c21fc0279.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-9b4c3c8ba22d4f89.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-95a9d57e67df36ac.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-54b5a43bd15db8a4.rmeta --extern text_io=/opt/rustwide/target/debug/deps/libtext_io-c34a067b65136fe0.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-46f7c157289848bc.rmeta --cap-lints=warn --crate-version 0.1.0` (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" "6ae9fbef8e738958dae8a42bcfa9dbc0d5f3da4476b5f9242d9128634f3b8f98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ae9fbef8e738958dae8a42bcfa9dbc0d5f3da4476b5f9242d9128634f3b8f98", kill_on_drop: false }`
[INFO] [stdout] 6ae9fbef8e738958dae8a42bcfa9dbc0d5f3da4476b5f9242d9128634f3b8f98