[INFO] cloning repository https://github.com/tristan-zander/advent_of_code_2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tristan-zander/advent_of_code_2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftristan-zander%2Fadvent_of_code_2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftristan-zander%2Fadvent_of_code_2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 86d23fd0cfe24861fedaa076036c4535ca23acd9
[INFO] documenting tristan-zander/advent_of_code_2020 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%2Ftristan-zander%2Fadvent_of_code_2020" "/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/tristan-zander/advent_of_code_2020 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/tristan-zander/advent_of_code_2020
[INFO] finished tweaking git repo https://github.com/tristan-zander/advent_of_code_2020
[INFO] tweaked toml for git repo https://github.com/tristan-zander/advent_of_code_2020 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/tristan-zander/advent_of_code_2020 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] 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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2f8d2b33e3134564612a4948804482c62afbfaaf15418b8dfc205c11d4e1a986
[INFO] running `Command { std: "docker" "start" "-a" "2f8d2b33e3134564612a4948804482c62afbfaaf15418b8dfc205c11d4e1a986", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f8d2b33e3134564612a4948804482c62afbfaaf15418b8dfc205c11d4e1a986", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f8d2b33e3134564612a4948804482c62afbfaaf15418b8dfc205c11d4e1a986", kill_on_drop: false }`
[INFO] [stdout] 2f8d2b33e3134564612a4948804482c62afbfaaf15418b8dfc205c11d4e1a986
[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" "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] 3fd2dd9da138b890acf35af32a1477c57b2e46af72d096b2b94dbe3bd719afce
[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" "3fd2dd9da138b890acf35af32a1477c57b2e46af72d096b2b94dbe3bd719afce", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking day5 v0.1.0 (/opt/rustwide/workdir/day5)
[INFO] [stderr]     Checking day2 v0.1.0 (/opt/rustwide/workdir/day2)
[INFO] [stderr]     Checking day3 v0.1.0 (/opt/rustwide/workdir/day3)
[INFO] [stderr]     Checking day6 v0.1.0 (/opt/rustwide/workdir/day6)
[INFO] [stderr]  Documenting day6 v0.1.0 (/opt/rustwide/workdir/day6)
[INFO] [stderr]  Documenting day1 v0.1.0 (/opt/rustwide/workdir/day1)
[INFO] [stderr]  Documenting part2 v0.1.0 (/opt/rustwide/workdir/day1/part2)
[INFO] [stderr]  Documenting day3 v0.1.0 (/opt/rustwide/workdir/day3)
[INFO] [stderr]  Documenting day5 v0.1.0 (/opt/rustwide/workdir/day5)
[INFO] [stderr]  Documenting day6p2 v0.1.0 (/opt/rustwide/workdir/day6/day6p2)
[INFO] [stderr]  Documenting day2 v0.1.0 (/opt/rustwide/workdir/day2)
[INFO] [stderr]     Checking day4 v0.1.0 (/opt/rustwide/workdir/day4)
[INFO] [stderr]  Documenting day4 v0.1.0 (/opt/rustwide/workdir/day4)
[INFO] [stderr]  Documenting day4p2 v0.1.0 (/opt/rustwide/workdir/day4/day4p2)
[INFO] [stderr]  Documenting day4p1 v0.1.0 (/opt/rustwide/workdir/day4/day4p1)
[INFO] [stderr]  Documenting day6p1 v0.1.0 (/opt/rustwide/workdir/day6/day6p1)
[INFO] [stderr]  Documenting day5p1 v0.1.0 (/opt/rustwide/workdir/day5/day5p1)
[INFO] [stderr]  Documenting day5p2 v0.1.0 (/opt/rustwide/workdir/day5/day5p2)
[INFO] [stderr]  Documenting p2 v0.1.0 (/opt/rustwide/workdir/day2/p2)
[INFO] [stderr]  Documenting p1 v0.1.0 (/opt/rustwide/workdir/day2/p1)
[INFO] [stderr]  Documenting day3p2 v0.1.0 (/opt/rustwide/workdir/day3/day3p2)
[INFO] [stderr] error: could not document `day1`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --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=98c8191d10bb1fdb -L dependency=/opt/rustwide/target/debug/deps --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 `day2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name day2 day2/src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=e6c9ef45e5e282f5 -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `day6p2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day6p2 day6/day6p2/src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=9c4ef5d2d162ffad -L dependency=/opt/rustwide/target/debug/deps --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 --edition=2018 --crate-type lib --crate-name day3 day3/src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=6ad8f5bce30e2e67 -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `part2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name part2 day1/part2/src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=8d5dd1e97ab9ecc9 -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "3fd2dd9da138b890acf35af32a1477c57b2e46af72d096b2b94dbe3bd719afce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fd2dd9da138b890acf35af32a1477c57b2e46af72d096b2b94dbe3bd719afce", kill_on_drop: false }`
[INFO] [stdout] 3fd2dd9da138b890acf35af32a1477c57b2e46af72d096b2b94dbe3bd719afce