[INFO] cloning repository https://github.com/ajfrantz/advent2018
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ajfrantz/advent2018" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fajfrantz%2Fadvent2018", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fajfrantz%2Fadvent2018'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e142839799b03d3b8299bed6e4f1d93e2b1193f3
[INFO] documenting ajfrantz/advent2018 against 1.98.0-beta.8 for beta-rustdoc-1.99-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fajfrantz%2Fadvent2018" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ajfrantz/advent2018
[INFO] finished tweaking git repo https://github.com/ajfrantz/advent2018
[INFO] tweaked toml for git repo https://github.com/ajfrantz/advent2018 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ajfrantz/advent2018 on toolchain 1.98.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.98.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ajfrantz/advent2018 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.98.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded slotmap v0.3.0
[INFO] [stderr]   Downloaded lazy_static v1.2.0
[INFO] [stderr]   Downloaded autocfg v0.1.1
[INFO] [stderr]   Downloaded rand_core v0.2.2
[INFO] [stderr]   Downloaded scopeguard v0.3.3
[INFO] [stderr]   Downloaded failure_derive v0.1.4
[INFO] [stderr]   Downloaded nodrop v0.1.13
[INFO] [stderr]   Downloaded quote v0.6.10
[INFO] [stderr]   Downloaded crossbeam-utils v0.2.2
[INFO] [stderr]   Downloaded crossbeam-deque v0.2.0
[INFO] [stderr]   Downloaded either v1.5.0
[INFO] [stderr]   Downloaded rustc-demangle v0.1.11
[INFO] [stderr]   Downloaded cached v0.8.0
[INFO] [stderr]   Downloaded once_cell v0.1.6
[INFO] [stderr]   Downloaded num_cpus v1.9.0
[INFO] [stderr]   Downloaded memoffset v0.2.1
[INFO] [stderr]   Downloaded fixedbitset v0.1.9
[INFO] [stderr]   Downloaded proc-macro2 v0.4.24
[INFO] [stderr]   Downloaded arrayvec v0.4.10
[INFO] [stderr]   Downloaded synstructure v0.10.1
[INFO] [stderr]   Downloaded parking_lot_core v0.3.1
[INFO] [stderr]   Downloaded smallvec v0.6.7
[INFO] [stderr]   Downloaded rand_core v0.3.0
[INFO] [stderr]   Downloaded lock_api v0.1.5
[INFO] [stderr]   Downloaded indexmap v1.0.2
[INFO] [stderr]   Downloaded backtrace v0.3.13
[INFO] [stderr]   Downloaded parking_lot v0.6.4
[INFO] [stderr]   Downloaded crossbeam-epoch v0.3.1
[INFO] [stderr]   Downloaded cc v1.0.28
[INFO] [stderr]   Downloaded aho-corasick v0.6.9
[INFO] [stderr]   Downloaded failure v0.1.4
[INFO] [stderr]   Downloaded num-traits v0.2.6
[INFO] [stderr]   Downloaded rayon-core v1.4.1
[INFO] [stderr]   Downloaded regex v1.1.0
[INFO] [stderr]   Downloaded itertools v0.8.0
[INFO] [stderr]   Downloaded rayon v1.0.3
[INFO] [stderr]   Downloaded pathfinding v1.1.10
[INFO] [stderr]   Downloaded syn v0.15.23
[INFO] [stderr]   Downloaded rand v0.5.5
[INFO] [stderr]   Downloaded regex-syntax v0.6.4
[INFO] [stderr]   Downloaded libc v0.2.45
[INFO] [stderr]   Downloaded backtrace-sys v0.1.28
[INFO] [stderr]   Downloaded winapi v0.3.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:00c5645b54fe3ce5dae1417175e3c7fb6a6646c021d554ecd63a097b8b9f3602" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 22e4ab54dd6e37442c6acc271fd4649a54dcfbf1bf3fddf5aa9b47e24d0cdb5c
[INFO] running `Command { std: "docker" "start" "22e4ab54dd6e37442c6acc271fd4649a54dcfbf1bf3fddf5aa9b47e24d0cdb5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22e4ab54dd6e37442c6acc271fd4649a54dcfbf1bf3fddf5aa9b47e24d0cdb5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "22e4ab54dd6e37442c6acc271fd4649a54dcfbf1bf3fddf5aa9b47e24d0cdb5c" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22e4ab54dd6e37442c6acc271fd4649a54dcfbf1bf3fddf5aa9b47e24d0cdb5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "22e4ab54dd6e37442c6acc271fd4649a54dcfbf1bf3fddf5aa9b47e24d0cdb5c" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.8" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]    Compiling cc v1.0.28
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling autocfg v0.1.1
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling failure_derive v0.1.4
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]     Checking smallvec v0.6.7
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]     Checking rand_core v0.2.2
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking rustc-demangle v0.1.11
[INFO] [stderr]     Checking regex-syntax v0.6.4
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking indexmap v1.0.2
[INFO] [stderr]     Checking slotmap v0.3.0
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking num_cpus v1.9.0
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking pathfinding v1.1.10
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking once_cell v0.1.6
[INFO] [stderr]     Checking cached v0.8.0
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking failure v0.1.4
[INFO] [stderr]  Documenting advent2018 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not document `advent2018`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.98.0-beta.8-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2018 --crate-type bin --crate-name 22 src/bin/22.rs -o /opt/rustwide/target/doc --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat -C metadata=b41daa8b738552e4 -L dependency=/opt/rustwide/target/debug/deps --extern cached=/opt/rustwide/target/debug/deps/libcached-5e3216dc540b4788.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-71a562e54d2da174.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-2e6862328202b7e3.rmeta --extern pathfinding=/opt/rustwide/target/debug/deps/libpathfinding-e24132cd959bab7c.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-96d30c84a15b0442.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-6029ba3d7dd1e424.rmeta --extern slotmap=/opt/rustwide/target/debug/deps/libslotmap-ebcec47e72544d76.rmeta --document-private-items '-Arustdoc::private-intra-doc-links' --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "22e4ab54dd6e37442c6acc271fd4649a54dcfbf1bf3fddf5aa9b47e24d0cdb5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22e4ab54dd6e37442c6acc271fd4649a54dcfbf1bf3fddf5aa9b47e24d0cdb5c", kill_on_drop: false }`
[INFO] [stdout] 22e4ab54dd6e37442c6acc271fd4649a54dcfbf1bf3fddf5aa9b47e24d0cdb5c