[INFO] cloning repository https://github.com/adek05/AdventOfCode2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/adek05/AdventOfCode2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadek05%2FAdventOfCode2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadek05%2FAdventOfCode2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dd3cf77ebb3c9f0f93e902a7ae6a3ffe8a2b6d0b
[INFO] documenting adek05/AdventOfCode2020 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadek05%2FAdventOfCode2020" "/workspace/builds/worker-33/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-33/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/adek05/AdventOfCode2020 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/adek05/AdventOfCode2020
[INFO] finished tweaking git repo https://github.com/adek05/AdventOfCode2020
[INFO] tweaked toml for git repo https://github.com/adek05/AdventOfCode2020 written to /workspace/builds/worker-33/source/Cargo.toml
[INFO] crate git repo https://github.com/adek05/AdventOfCode2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49d5670ea786c28a6522194f9e4d92f4fa56df250d6949f54937683bd43210c5
[INFO] running `Command { std: "docker" "start" "-a" "49d5670ea786c28a6522194f9e4d92f4fa56df250d6949f54937683bd43210c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49d5670ea786c28a6522194f9e4d92f4fa56df250d6949f54937683bd43210c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49d5670ea786c28a6522194f9e4d92f4fa56df250d6949f54937683bd43210c5", kill_on_drop: false }`
[INFO] [stdout] 49d5670ea786c28a6522194f9e4d92f4fa56df250d6949f54937683bd43210c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e0c215d24cd05b08b984493f95a1d47e7290ce05dd6983e1cc263bf751e5ee5
[INFO] running `Command { std: "docker" "start" "-a" "2e0c215d24cd05b08b984493f95a1d47e7290ce05dd6983e1cc263bf751e5ee5", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking unicode-segmentation v0.1.2
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling strcursor v0.2.5
[INFO] [stderr]    Compiling scan-rules v0.2.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]  Documenting AdventOfCode2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/allergen_assessment.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(iterator_fold_self)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `AdventOfCode2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name passport_processing src/passport_processing.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=85cd00ff8df49a34 -L dependency=/opt/rustwide/target/debug/deps --extern itertools=/opt/rustwide/target/debug/deps/libitertools-878b88b4202074c2.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-56add537c7d905c8.rmeta --extern scan_rules=/opt/rustwide/target/debug/deps/libscan_rules-53a43386a35bc878.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 `AdventOfCode2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name ticket_translation src/ticket_translation.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=c5d8f2173f079905 -L dependency=/opt/rustwide/target/debug/deps --extern itertools=/opt/rustwide/target/debug/deps/libitertools-878b88b4202074c2.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-56add537c7d905c8.rmeta --extern scan_rules=/opt/rustwide/target/debug/deps/libscan_rules-53a43386a35bc878.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `AdventOfCode2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name conway_cubes src/conway_cubes.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=d54721d6efd5bae2 -L dependency=/opt/rustwide/target/debug/deps --extern itertools=/opt/rustwide/target/debug/deps/libitertools-878b88b4202074c2.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-56add537c7d905c8.rmeta --extern scan_rules=/opt/rustwide/target/debug/deps/libscan_rules-53a43386a35bc878.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `AdventOfCode2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name monster_messages src/monster_messages.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=c53a289fe584e525 -L dependency=/opt/rustwide/target/debug/deps --extern itertools=/opt/rustwide/target/debug/deps/libitertools-878b88b4202074c2.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-56add537c7d905c8.rmeta --extern scan_rules=/opt/rustwide/target/debug/deps/libscan_rules-53a43386a35bc878.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `AdventOfCode2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name binary_boarding src/binary_boarding.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=739f4fb94fc66bd0 -L dependency=/opt/rustwide/target/debug/deps --extern itertools=/opt/rustwide/target/debug/deps/libitertools-878b88b4202074c2.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-56add537c7d905c8.rmeta --extern scan_rules=/opt/rustwide/target/debug/deps/libscan_rules-53a43386a35bc878.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `AdventOfCode2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name toboggan_trajectory src/toboggan_trajectory.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=e546811fb8ab7a41 -L dependency=/opt/rustwide/target/debug/deps --extern itertools=/opt/rustwide/target/debug/deps/libitertools-878b88b4202074c2.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-56add537c7d905c8.rmeta --extern scan_rules=/opt/rustwide/target/debug/deps/libscan_rules-53a43386a35bc878.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `AdventOfCode2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name allergen_assessment src/allergen_assessment.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=dbf9d54e83d0defa -L dependency=/opt/rustwide/target/debug/deps --extern itertools=/opt/rustwide/target/debug/deps/libitertools-878b88b4202074c2.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-56add537c7d905c8.rmeta --extern scan_rules=/opt/rustwide/target/debug/deps/libscan_rules-53a43386a35bc878.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `AdventOfCode2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name custom_customs src/custom_customs.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=549b121a74c69b3a -L dependency=/opt/rustwide/target/debug/deps --extern itertools=/opt/rustwide/target/debug/deps/libitertools-878b88b4202074c2.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-56add537c7d905c8.rmeta --extern scan_rules=/opt/rustwide/target/debug/deps/libscan_rules-53a43386a35bc878.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `AdventOfCode2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name docking_data src/docking_data.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=cc00210bbcae8ec8 -L dependency=/opt/rustwide/target/debug/deps --extern itertools=/opt/rustwide/target/debug/deps/libitertools-878b88b4202074c2.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-56add537c7d905c8.rmeta --extern scan_rules=/opt/rustwide/target/debug/deps/libscan_rules-53a43386a35bc878.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `AdventOfCode2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name seating_system src/seating_system.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=7a7877aba12550c8 -L dependency=/opt/rustwide/target/debug/deps --extern itertools=/opt/rustwide/target/debug/deps/libitertools-878b88b4202074c2.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-56add537c7d905c8.rmeta --extern scan_rules=/opt/rustwide/target/debug/deps/libscan_rules-53a43386a35bc878.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `AdventOfCode2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name shuttle_search src/shuttle_search.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=741bae9c375c0ee3 -L dependency=/opt/rustwide/target/debug/deps --extern itertools=/opt/rustwide/target/debug/deps/libitertools-878b88b4202074c2.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-56add537c7d905c8.rmeta --extern scan_rules=/opt/rustwide/target/debug/deps/libscan_rules-53a43386a35bc878.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `AdventOfCode2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name adapter_array src/adapter_array.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=af7a6ebe520b8a8c -L dependency=/opt/rustwide/target/debug/deps --extern itertools=/opt/rustwide/target/debug/deps/libitertools-878b88b4202074c2.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-56add537c7d905c8.rmeta --extern scan_rules=/opt/rustwide/target/debug/deps/libscan_rules-53a43386a35bc878.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `AdventOfCode2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name jurassic_jigsaw src/jurassic_jigsaw.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=5ad193c639e7506b -L dependency=/opt/rustwide/target/debug/deps --extern itertools=/opt/rustwide/target/debug/deps/libitertools-878b88b4202074c2.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-56add537c7d905c8.rmeta --extern scan_rules=/opt/rustwide/target/debug/deps/libscan_rules-53a43386a35bc878.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `AdventOfCode2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name handheld_halting src/handheld_halting.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=f74fa1ae1b7af851 -L dependency=/opt/rustwide/target/debug/deps --extern itertools=/opt/rustwide/target/debug/deps/libitertools-878b88b4202074c2.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-56add537c7d905c8.rmeta --extern scan_rules=/opt/rustwide/target/debug/deps/libscan_rules-53a43386a35bc878.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "2e0c215d24cd05b08b984493f95a1d47e7290ce05dd6983e1cc263bf751e5ee5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e0c215d24cd05b08b984493f95a1d47e7290ce05dd6983e1cc263bf751e5ee5", kill_on_drop: false }`
[INFO] [stdout] 2e0c215d24cd05b08b984493f95a1d47e7290ce05dd6983e1cc263bf751e5ee5