[INFO] cloning repository https://github.com/jlricon/advent-2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jlricon/advent-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjlricon%2Fadvent-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjlricon%2Fadvent-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4198d90acd050e662063b496daab946d69cb49a2
[INFO] documenting jlricon/advent-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%2Fjlricon%2Fadvent-2020" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jlricon/advent-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/jlricon/advent-2020
[INFO] finished tweaking git repo https://github.com/jlricon/advent-2020
[INFO] tweaked toml for git repo https://github.com/jlricon/advent-2020 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/jlricon/advent-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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sized-chunks v0.6.2
[INFO] [stderr]   Downloaded im-rc v15.0.0
[INFO] [stderr]   Downloaded getrandom v0.2.0
[INFO] [stderr]   Downloaded rand_core v0.6.0
[INFO] [stderr]   Downloaded rand v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 2a2baa0084d101b701696139a0598f17d9d58dbc9326c17e221c79264a231faa
[INFO] running `Command { std: "docker" "start" "-a" "2a2baa0084d101b701696139a0598f17d9d58dbc9326c17e221c79264a231faa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a2baa0084d101b701696139a0598f17d9d58dbc9326c17e221c79264a231faa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a2baa0084d101b701696139a0598f17d9d58dbc9326c17e221c79264a231faa", kill_on_drop: false }`
[INFO] [stdout] 2a2baa0084d101b701696139a0598f17d9d58dbc9326c17e221c79264a231faa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] c2009bbe785734852d14633a6ff5a2ddebbdf1cb25953c12fb557784571217aa
[INFO] running `Command { std: "docker" "start" "-a" "c2009bbe785734852d14633a6ff5a2ddebbdf1cb25953c12fb557784571217aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling const_fn v0.4.4
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking rand_xoshiro v0.4.0
[INFO] [stderr]    Compiling im-rc v15.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand_core v0.6.0
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking bitmaps v2.1.0
[INFO] [stderr]     Checking rand v0.8.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking sized-chunks v0.6.2
[INFO] [stderr]  Documenting advent-2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/bin/day2.rs:52:14
[INFO] [stdout]    |
[INFO] [stdout] 52 |             };
[INFO] [stdout]    |              ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/bin/day4.rs:23:6
[INFO] [stdout]    |
[INFO] [stdout] 23 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `advent-2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day11 src/bin/day11.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=1fb41f84f09edc0d -L dependency=/opt/rustwide/target/debug/deps --extern im_rc=/opt/rustwide/target/debug/deps/libim_rc-fce2f6c2650d39b5.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-31732f101c7334d9.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-3933015581b814a2.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-db498afdf35681ba.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 `advent-2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day19 src/bin/day19.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=bee7a9300d644caf -L dependency=/opt/rustwide/target/debug/deps --extern im_rc=/opt/rustwide/target/debug/deps/libim_rc-fce2f6c2650d39b5.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-31732f101c7334d9.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-3933015581b814a2.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-db498afdf35681ba.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `advent-2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day20b src/bin/day20b.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=f24dad0bc141d917 -L dependency=/opt/rustwide/target/debug/deps --extern im_rc=/opt/rustwide/target/debug/deps/libim_rc-fce2f6c2650d39b5.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-31732f101c7334d9.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-3933015581b814a2.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-db498afdf35681ba.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `advent-2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day2 src/bin/day2.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=19e5e88d42090730 -L dependency=/opt/rustwide/target/debug/deps --extern im_rc=/opt/rustwide/target/debug/deps/libim_rc-fce2f6c2650d39b5.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-31732f101c7334d9.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-3933015581b814a2.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-db498afdf35681ba.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `advent-2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day24 src/bin/day24.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=de872771ad69a0b6 -L dependency=/opt/rustwide/target/debug/deps --extern im_rc=/opt/rustwide/target/debug/deps/libim_rc-fce2f6c2650d39b5.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-31732f101c7334d9.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-3933015581b814a2.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-db498afdf35681ba.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `advent-2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day6 src/bin/day6.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=4dbbdc1ee39c5bc3 -L dependency=/opt/rustwide/target/debug/deps --extern im_rc=/opt/rustwide/target/debug/deps/libim_rc-fce2f6c2650d39b5.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-31732f101c7334d9.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-3933015581b814a2.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-db498afdf35681ba.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `advent-2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day22 src/bin/day22.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=e94e86c711a1b2e1 -L dependency=/opt/rustwide/target/debug/deps --extern im_rc=/opt/rustwide/target/debug/deps/libim_rc-fce2f6c2650d39b5.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-31732f101c7334d9.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-3933015581b814a2.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-db498afdf35681ba.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `advent-2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day13 src/bin/day13.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=e4331d129eb00218 -L dependency=/opt/rustwide/target/debug/deps --extern im_rc=/opt/rustwide/target/debug/deps/libim_rc-fce2f6c2650d39b5.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-31732f101c7334d9.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-3933015581b814a2.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-db498afdf35681ba.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `advent-2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day18 src/bin/day18.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=9c8b0db2f5b77efd -L dependency=/opt/rustwide/target/debug/deps --extern im_rc=/opt/rustwide/target/debug/deps/libim_rc-fce2f6c2650d39b5.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-31732f101c7334d9.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-3933015581b814a2.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-db498afdf35681ba.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `advent-2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day3 src/bin/day3.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=fb092a522443c35c -L dependency=/opt/rustwide/target/debug/deps --extern im_rc=/opt/rustwide/target/debug/deps/libim_rc-fce2f6c2650d39b5.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-31732f101c7334d9.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-3933015581b814a2.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-db498afdf35681ba.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `advent-2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day12 src/bin/day12.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=5b846336dd342992 -L dependency=/opt/rustwide/target/debug/deps --extern im_rc=/opt/rustwide/target/debug/deps/libim_rc-fce2f6c2650d39b5.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-31732f101c7334d9.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-3933015581b814a2.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-db498afdf35681ba.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `advent-2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day5 src/bin/day5.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=a5e9ca3f5b73cb5c -L dependency=/opt/rustwide/target/debug/deps --extern im_rc=/opt/rustwide/target/debug/deps/libim_rc-fce2f6c2650d39b5.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-31732f101c7334d9.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-3933015581b814a2.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-db498afdf35681ba.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `advent-2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day9 src/bin/day9.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=b3fcb4848bfc169f -L dependency=/opt/rustwide/target/debug/deps --extern im_rc=/opt/rustwide/target/debug/deps/libim_rc-fce2f6c2650d39b5.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-31732f101c7334d9.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-3933015581b814a2.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-db498afdf35681ba.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `advent-2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day8 src/bin/day8.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=a9e6d8479fdaf666 -L dependency=/opt/rustwide/target/debug/deps --extern im_rc=/opt/rustwide/target/debug/deps/libim_rc-fce2f6c2650d39b5.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-31732f101c7334d9.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-3933015581b814a2.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-db498afdf35681ba.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c2009bbe785734852d14633a6ff5a2ddebbdf1cb25953c12fb557784571217aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2009bbe785734852d14633a6ff5a2ddebbdf1cb25953c12fb557784571217aa", kill_on_drop: false }`
[INFO] [stdout] c2009bbe785734852d14633a6ff5a2ddebbdf1cb25953c12fb557784571217aa