[INFO] cloning repository https://github.com/russcam/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/russcam/advent_of_code_2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frusscam%2Fadvent_of_code_2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frusscam%2Fadvent_of_code_2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ddc824d94072d10f341baa80e5597f2ac300c5f3
[INFO] documenting russcam/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%2Frusscam%2Fadvent_of_code_2021" "/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/russcam/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/russcam/advent_of_code_2021
[INFO] finished tweaking git repo https://github.com/russcam/advent_of_code_2021
[INFO] tweaked toml for git repo https://github.com/russcam/advent_of_code_2021 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/russcam/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] 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] 84f6d908dd3124abec51a004842ea6ef3af64beda52a2ae72a5a92f0738a85b4
[INFO] running `Command { std: "docker" "start" "-a" "84f6d908dd3124abec51a004842ea6ef3af64beda52a2ae72a5a92f0738a85b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84f6d908dd3124abec51a004842ea6ef3af64beda52a2ae72a5a92f0738a85b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84f6d908dd3124abec51a004842ea6ef3af64beda52a2ae72a5a92f0738a85b4", kill_on_drop: false }`
[INFO] [stdout] 84f6d908dd3124abec51a004842ea6ef3af64beda52a2ae72a5a92f0738a85b4
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a002e981b3d237ec84abfd26c7f009204b83d6c5f3567bb0a8ea0804ad236674
[INFO] running `Command { std: "docker" "start" "-a" "a002e981b3d237ec84abfd26c7f009204b83d6c5f3567bb0a8ea0804ad236674", kill_on_drop: false }`
[INFO] [stderr]     Checking fixedbitset v0.4.0
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking integer-sqrt v0.1.5
[INFO] [stderr]     Checking pathfinding v3.0.5
[INFO] [stderr]  Documenting 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=2018 --crate-type bin --crate-name day_15 src/bin/day_15.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=6a93c7e6d8d7f7fd -L dependency=/opt/rustwide/target/debug/deps --extern ansi_term=/opt/rustwide/target/debug/deps/libansi_term-750966cfa58739ff.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-f04befd43a542516.rmeta --extern pathfinding=/opt/rustwide/target/debug/deps/libpathfinding-5d8afb94e24f97bd.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=2018 --crate-type bin --crate-name day_11 src/bin/day_11.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=6505c384cc46409d -L dependency=/opt/rustwide/target/debug/deps --extern ansi_term=/opt/rustwide/target/debug/deps/libansi_term-750966cfa58739ff.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-f04befd43a542516.rmeta --extern pathfinding=/opt/rustwide/target/debug/deps/libpathfinding-5d8afb94e24f97bd.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=2018 --crate-type bin --crate-name day_2 src/bin/day_2.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=1231e59fd3471395 -L dependency=/opt/rustwide/target/debug/deps --extern ansi_term=/opt/rustwide/target/debug/deps/libansi_term-750966cfa58739ff.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-f04befd43a542516.rmeta --extern pathfinding=/opt/rustwide/target/debug/deps/libpathfinding-5d8afb94e24f97bd.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=2018 --crate-type bin --crate-name day_5 src/bin/day_5.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=4a06bc991888e248 -L dependency=/opt/rustwide/target/debug/deps --extern ansi_term=/opt/rustwide/target/debug/deps/libansi_term-750966cfa58739ff.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-f04befd43a542516.rmeta --extern pathfinding=/opt/rustwide/target/debug/deps/libpathfinding-5d8afb94e24f97bd.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=2018 --crate-type bin --crate-name day_3 src/bin/day_3.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=8fddaf8787abc5ac -L dependency=/opt/rustwide/target/debug/deps --extern ansi_term=/opt/rustwide/target/debug/deps/libansi_term-750966cfa58739ff.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-f04befd43a542516.rmeta --extern pathfinding=/opt/rustwide/target/debug/deps/libpathfinding-5d8afb94e24f97bd.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "a002e981b3d237ec84abfd26c7f009204b83d6c5f3567bb0a8ea0804ad236674", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a002e981b3d237ec84abfd26c7f009204b83d6c5f3567bb0a8ea0804ad236674", kill_on_drop: false }`
[INFO] [stdout] a002e981b3d237ec84abfd26c7f009204b83d6c5f3567bb0a8ea0804ad236674