[INFO] cloning repository https://github.com/tristan/adventofcode2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tristan/adventofcode2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftristan%2Fadventofcode2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftristan%2Fadventofcode2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9417fc5b2ae48e1eedeba64ce935c0c17cee4643
[INFO] documenting tristan/adventofcode2021 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%2Fadventofcode2021" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tristan/adventofcode2021 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/adventofcode2021
[INFO] finished tweaking git repo https://github.com/tristan/adventofcode2021
[INFO] tweaked toml for git repo https://github.com/tristan/adventofcode2021 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/tristan/adventofcode2021 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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 0f6808740e2dcf9a9b6ab965bce47139dee4fe552467bbfc7c70b9887c730ac2
[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" "0f6808740e2dcf9a9b6ab965bce47139dee4fe552467bbfc7c70b9887c730ac2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f6808740e2dcf9a9b6ab965bce47139dee4fe552467bbfc7c70b9887c730ac2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f6808740e2dcf9a9b6ab965bce47139dee4fe552467bbfc7c70b9887c730ac2", kill_on_drop: false }`
[INFO] [stdout] 0f6808740e2dcf9a9b6ab965bce47139dee4fe552467bbfc7c70b9887c730ac2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 74ace975e731b068b79ea72de7f313eb3daecc113bcdbfd9fe41e07cd0bfa29a
[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" "74ace975e731b068b79ea72de7f313eb3daecc113bcdbfd9fe41e07cd0bfa29a", kill_on_drop: false }`
[INFO] [stderr]     Checking adventofcode2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting adventofcode2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not document `adventofcode2021`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name day_20 src/day_20.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=cfc41caafcffe657 -L dependency=/opt/rustwide/target/debug/deps --extern adventofcode2021=/opt/rustwide/target/debug/deps/libadventofcode2021-eb301bab9fbae6d6.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 `adventofcode2021`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name day_15 src/day_15.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=cbde67cf8346ba0a -L dependency=/opt/rustwide/target/debug/deps --extern adventofcode2021=/opt/rustwide/target/debug/deps/libadventofcode2021-eb301bab9fbae6d6.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `adventofcode2021`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name day_24 src/day_24.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=6641a9c7ca2ddbca -L dependency=/opt/rustwide/target/debug/deps --extern adventofcode2021=/opt/rustwide/target/debug/deps/libadventofcode2021-eb301bab9fbae6d6.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `adventofcode2021`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name day_01 src/day_01.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=843c666da3b3fccf -L dependency=/opt/rustwide/target/debug/deps --extern adventofcode2021=/opt/rustwide/target/debug/deps/libadventofcode2021-eb301bab9fbae6d6.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `adventofcode2021`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name day_18 src/day_18.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=2883d7cef3f52134 -L dependency=/opt/rustwide/target/debug/deps --extern adventofcode2021=/opt/rustwide/target/debug/deps/libadventofcode2021-eb301bab9fbae6d6.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "74ace975e731b068b79ea72de7f313eb3daecc113bcdbfd9fe41e07cd0bfa29a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74ace975e731b068b79ea72de7f313eb3daecc113bcdbfd9fe41e07cd0bfa29a", kill_on_drop: false }`
[INFO] [stdout] 74ace975e731b068b79ea72de7f313eb3daecc113bcdbfd9fe41e07cd0bfa29a