[INFO] cloning repository https://github.com/mrjones2014/advent-of-code-2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mrjones2014/advent-of-code-2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrjones2014%2Fadvent-of-code-2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrjones2014%2Fadvent-of-code-2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6042648b040f1df96540efd9846f691c6220b11e
[INFO] documenting mrjones2014/advent-of-code-2021 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%2Fmrjones2014%2Fadvent-of-code-2021" "/workspace/builds/worker-29/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-29/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mrjones2014/advent-of-code-2021 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/mrjones2014/advent-of-code-2021
[INFO] finished tweaking git repo https://github.com/mrjones2014/advent-of-code-2021
[INFO] tweaked toml for git repo https://github.com/mrjones2014/advent-of-code-2021 written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] crate git repo https://github.com/mrjones2014/advent-of-code-2021 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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] 416b6849da411092bb63c47a520ea3cb85d1a58fd77cefdef7b0553d983a3aa3
[INFO] running `Command { std: "docker" "start" "-a" "416b6849da411092bb63c47a520ea3cb85d1a58fd77cefdef7b0553d983a3aa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "416b6849da411092bb63c47a520ea3cb85d1a58fd77cefdef7b0553d983a3aa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "416b6849da411092bb63c47a520ea3cb85d1a58fd77cefdef7b0553d983a3aa3", kill_on_drop: false }`
[INFO] [stdout] 416b6849da411092bb63c47a520ea3cb85d1a58fd77cefdef7b0553d983a3aa3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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] 64f6d41096ffb184525680c41515da59472ea8a0c0f3647e89af28bf9dad5b68
[INFO] running `Command { std: "docker" "start" "-a" "64f6d41096ffb184525680c41515da59472ea8a0c0f3647e89af28bf9dad5b68", kill_on_drop: false }`
[INFO] [stderr]  Documenting advent-of-code-2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking advent-of-code-2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not document `advent-of-code-2021`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name puzzle6 src/bin/puzzle6.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=94679e6a7dbb7d98 -L dependency=/opt/rustwide/target/debug/deps --extern utils=/opt/rustwide/target/debug/deps/libutils-01bff63a95d76e27.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-of-code-2021`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name puzzle8 src/bin/puzzle8.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=e22c08797573d939 -L dependency=/opt/rustwide/target/debug/deps --extern utils=/opt/rustwide/target/debug/deps/libutils-01bff63a95d76e27.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `advent-of-code-2021`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name puzzle9 src/bin/puzzle9.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=990e3639e28ce8df -L dependency=/opt/rustwide/target/debug/deps --extern utils=/opt/rustwide/target/debug/deps/libutils-01bff63a95d76e27.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `advent-of-code-2021`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name puzzle4 src/bin/puzzle4.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=3c6e1866ca4eaf66 -L dependency=/opt/rustwide/target/debug/deps --extern utils=/opt/rustwide/target/debug/deps/libutils-01bff63a95d76e27.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `advent-of-code-2021`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name puzzle5 src/bin/puzzle5.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=5960201a960d1952 -L dependency=/opt/rustwide/target/debug/deps --extern utils=/opt/rustwide/target/debug/deps/libutils-01bff63a95d76e27.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `advent-of-code-2021`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name puzzle2 src/bin/puzzle2.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=7d14314c3e625bf6 -L dependency=/opt/rustwide/target/debug/deps --extern utils=/opt/rustwide/target/debug/deps/libutils-01bff63a95d76e27.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `advent-of-code-2021`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name puzzle18 src/bin/puzzle18.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=0e398ad81a1cc713 -L dependency=/opt/rustwide/target/debug/deps --extern utils=/opt/rustwide/target/debug/deps/libutils-01bff63a95d76e27.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "64f6d41096ffb184525680c41515da59472ea8a0c0f3647e89af28bf9dad5b68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64f6d41096ffb184525680c41515da59472ea8a0c0f3647e89af28bf9dad5b68", kill_on_drop: false }`
[INFO] [stdout] 64f6d41096ffb184525680c41515da59472ea8a0c0f3647e89af28bf9dad5b68