[INFO] cloning repository https://github.com/naveedhd/advent-of-code-2021-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/naveedhd/advent-of-code-2021-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnaveedhd%2Fadvent-of-code-2021-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnaveedhd%2Fadvent-of-code-2021-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0cfe6f04f52637c3e95174a535312c9ecce61d1d
[INFO] documenting naveedhd/advent-of-code-2021-rust 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%2Fnaveedhd%2Fadvent-of-code-2021-rust" "/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/naveedhd/advent-of-code-2021-rust 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/naveedhd/advent-of-code-2021-rust
[INFO] finished tweaking git repo https://github.com/naveedhd/advent-of-code-2021-rust
[INFO] tweaked toml for git repo https://github.com/naveedhd/advent-of-code-2021-rust written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/naveedhd/advent-of-code-2021-rust 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 counter v0.5.4
[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] dd7f5e1b473f64e9e696c4a5c495ee740f12f3903f7520111e697ea8170eb452
[INFO] running `Command { std: "docker" "start" "-a" "dd7f5e1b473f64e9e696c4a5c495ee740f12f3903f7520111e697ea8170eb452", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd7f5e1b473f64e9e696c4a5c495ee740f12f3903f7520111e697ea8170eb452", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd7f5e1b473f64e9e696c4a5c495ee740f12f3903f7520111e697ea8170eb452", kill_on_drop: false }`
[INFO] [stdout] dd7f5e1b473f64e9e696c4a5c495ee740f12f3903f7520111e697ea8170eb452
[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] 06b90b56841a61c6d3f81895dca5a7480547b2b7bd215ef6d68503d9206b7fa3
[INFO] running `Command { std: "docker" "start" "-a" "06b90b56841a61c6d3f81895dca5a7480547b2b7bd215ef6d68503d9206b7fa3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]     Checking counter v0.5.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.25
[INFO] [stderr]  Documenting advent_of_code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.51s
[INFO] running `Command { std: "docker" "inspect" "06b90b56841a61c6d3f81895dca5a7480547b2b7bd215ef6d68503d9206b7fa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06b90b56841a61c6d3f81895dca5a7480547b2b7bd215ef6d68503d9206b7fa3", kill_on_drop: false }`
[INFO] [stdout] 06b90b56841a61c6d3f81895dca5a7480547b2b7bd215ef6d68503d9206b7fa3