[INFO] cloning repository https://github.com/xfix/advent-of-code-2017
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xfix/advent-of-code-2017" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxfix%2Fadvent-of-code-2017", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxfix%2Fadvent-of-code-2017'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9edad6c876b42dbe7d862f9179a67b365fd9036c
[INFO] documenting xfix/advent-of-code-2017 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxfix%2Fadvent-of-code-2017" "/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/xfix/advent-of-code-2017 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xfix/advent-of-code-2017
[INFO] finished tweaking git repo https://github.com/xfix/advent-of-code-2017
[INFO] tweaked toml for git repo https://github.com/xfix/advent-of-code-2017 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/xfix/advent-of-code-2017 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded enum-map v0.2.23
[INFO] [stderr]   Downloaded integer-sqrt v0.1.0
[INFO] [stderr]   Downloaded revord v0.0.2
[INFO] [stderr]   Downloaded hex2d v0.1.0
[INFO] [stderr]   Downloaded itertools v0.7.4
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae9d198a09b395dee12a446c63445603e27d2d40c7452d732ad04ecfd433bdb3
[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" "ae9d198a09b395dee12a446c63445603e27d2d40c7452d732ad04ecfd433bdb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae9d198a09b395dee12a446c63445603e27d2d40c7452d732ad04ecfd433bdb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae9d198a09b395dee12a446c63445603e27d2d40c7452d732ad04ecfd433bdb3", kill_on_drop: false }`
[INFO] [stdout] ae9d198a09b395dee12a446c63445603e27d2d40c7452d732ad04ecfd433bdb3
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9c0adcebcd9bdb093be2ed995374789d96ce616de83356ae36d08bbba5de044
[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" "b9c0adcebcd9bdb093be2ed995374789d96ce616de83356ae36d08bbba5de044", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.34
[INFO] [stderr]    Compiling cc v1.0.3
[INFO] [stderr]     Checking num-traits v0.1.41
[INFO] [stderr]     Checking revord v0.0.2
[INFO] [stderr]     Checking integer-sqrt v0.1.0
[INFO] [stderr]     Checking if_chain v0.1.2
[INFO] [stderr]     Checking itertools v0.7.4
[INFO] [stderr]     Checking enum-map v0.2.23
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking rand v0.3.18
[INFO] [stderr]     Checking num-integer v0.1.35
[INFO] [stderr]     Checking num-complex v0.1.41
[INFO] [stderr]  Documenting day17 v0.1.0 (/opt/rustwide/workdir/day17)
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking num-iter v0.1.34
[INFO] [stderr]  Documenting day19 v0.1.0 (/opt/rustwide/workdir/day19)
[INFO] [stderr]     Checking num-bigint v0.1.41
[INFO] [stderr]  Documenting day20 v0.1.0 (/opt/rustwide/workdir/day20)
[INFO] [stderr]     Checking num-rational v0.1.40
[INFO] [stderr]     Checking num v0.1.41
[INFO] [stderr]     Checking hex2d v0.1.0
[INFO] [stderr]     Checking backtrace v0.3.4
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]  Documenting day10 v0.1.0 (/opt/rustwide/workdir/day10)
[INFO] [stderr]  Documenting day2 v0.1.0 (/opt/rustwide/workdir/day2)
[INFO] [stderr]  Documenting day16 v0.1.0 (/opt/rustwide/workdir/day16)
[INFO] [stderr]  Documenting day7 v0.1.0 (/opt/rustwide/workdir/day7)
[INFO] [stderr]  Documenting day1 v0.1.0 (/opt/rustwide/workdir/day1)
[INFO] [stderr]  Documenting day4 v0.1.0 (/opt/rustwide/workdir/day4)
[INFO] [stderr]  Documenting day5 v0.1.0 (/opt/rustwide/workdir/day5)
[INFO] [stderr]  Documenting day3b v0.1.0 (/opt/rustwide/workdir/day3b)
[INFO] [stderr]  Documenting day18 v0.1.0 (/opt/rustwide/workdir/day18)
[INFO] [stderr]  Documenting day9 v0.1.0 (/opt/rustwide/workdir/day9)
[INFO] [stderr]  Documenting day2b v0.1.0 (/opt/rustwide/workdir/day2b)
[INFO] [stderr]  Documenting day14 v0.1.0 (/opt/rustwide/workdir/day14)
[INFO] [stderr]  Documenting day6 v0.1.0 (/opt/rustwide/workdir/day6)
[INFO] [stderr]  Documenting day8 v0.1.0 (/opt/rustwide/workdir/day8)
[INFO] [stderr]  Documenting day13 v0.1.0 (/opt/rustwide/workdir/day13)
[INFO] [stderr]  Documenting day3 v0.1.0 (/opt/rustwide/workdir/day3)
[INFO] [stderr] error: could not document `day7`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name day7 day7/src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=7cf6aff69163f732 -L dependency=/opt/rustwide/target/debug/deps --extern error_chain=/opt/rustwide/target/debug/deps/liberror_chain-8fe10f03699aa067.rmeta --extern nom=/opt/rustwide/target/debug/deps/libnom-43f834a795b22ba9.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: could not document `day4`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name day4 day4/src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=744a06d301b656b7 -L dependency=/opt/rustwide/target/debug/deps --extern error_chain=/opt/rustwide/target/debug/deps/liberror_chain-8fe10f03699aa067.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `day10`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name day10 day10/src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=821b25921eb22126 -L dependency=/opt/rustwide/target/debug/deps --extern enum_map=/opt/rustwide/target/debug/deps/libenum_map-2b4d815b54faf183.rmeta --extern error_chain=/opt/rustwide/target/debug/deps/liberror_chain-8fe10f03699aa067.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `day14`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name day14 day14/src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=614c823b1f2f0cbf -L dependency=/opt/rustwide/target/debug/deps --extern enum_map=/opt/rustwide/target/debug/deps/libenum_map-2b4d815b54faf183.rmeta --extern error_chain=/opt/rustwide/target/debug/deps/liberror_chain-8fe10f03699aa067.rmeta --extern if_chain=/opt/rustwide/target/debug/deps/libif_chain-d50821891945c9a8.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `day1`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name day1 day1/src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=f212c8d5ab3f0f28 -L dependency=/opt/rustwide/target/debug/deps --extern error_chain=/opt/rustwide/target/debug/deps/liberror_chain-8fe10f03699aa067.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `day8`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name day8 day8/src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=ad01c04ea6b9667e -L dependency=/opt/rustwide/target/debug/deps --extern error_chain=/opt/rustwide/target/debug/deps/liberror_chain-8fe10f03699aa067.rmeta --extern nom=/opt/rustwide/target/debug/deps/libnom-43f834a795b22ba9.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `day3`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name day3 day3/src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=1771148771af6120 -L dependency=/opt/rustwide/target/debug/deps --extern error_chain=/opt/rustwide/target/debug/deps/liberror_chain-8fe10f03699aa067.rmeta --extern integer_sqrt=/opt/rustwide/target/debug/deps/libinteger_sqrt-9ef8994b8976caff.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "b9c0adcebcd9bdb093be2ed995374789d96ce616de83356ae36d08bbba5de044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9c0adcebcd9bdb093be2ed995374789d96ce616de83356ae36d08bbba5de044", kill_on_drop: false }`
[INFO] [stdout] b9c0adcebcd9bdb093be2ed995374789d96ce616de83356ae36d08bbba5de044