[INFO] cloning repository https://github.com/jianingy/aircarbon
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jianingy/aircarbon" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjianingy%2Faircarbon", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjianingy%2Faircarbon'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7be931568c1bb46841f874215c9bafe095bfbfef
[INFO] documenting jianingy/aircarbon 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%2Fjianingy%2Faircarbon" "/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/jianingy/aircarbon 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/jianingy/aircarbon
[INFO] finished tweaking git repo https://github.com/jianingy/aircarbon
[INFO] tweaked toml for git repo https://github.com/jianingy/aircarbon written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/jianingy/aircarbon 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]  Downloading crates ...
[INFO] [stderr]   Downloaded gcc v0.3.43
[INFO] [stderr]   Downloaded backtrace-sys v0.1.10
[INFO] [stderr]   Downloaded backtrace v0.3.0
[INFO] [stderr]   Downloaded clap v2.20.5
[INFO] [stderr]   Downloaded error-chain v0.9.0
[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] 5a72357804574dda1bd2224db3f342f425825d7c6100588206010a9bc81c8f87
[INFO] running `Command { std: "docker" "start" "-a" "5a72357804574dda1bd2224db3f342f425825d7c6100588206010a9bc81c8f87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a72357804574dda1bd2224db3f342f425825d7c6100588206010a9bc81c8f87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a72357804574dda1bd2224db3f342f425825d7c6100588206010a9bc81c8f87", kill_on_drop: false }`
[INFO] [stdout] 5a72357804574dda1bd2224db3f342f425825d7c6100588206010a9bc81c8f87
[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] 85897bb5f2e05f9eb670c4438883b01b1cc3697f08f1943a2a29c576b99b7921
[INFO] running `Command { std: "docker" "start" "-a" "85897bb5f2e05f9eb670c4438883b01b1cc3697f08f1943a2a29c576b99b7921", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.20
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling gcc v0.3.43
[INFO] [stderr]     Checking num-traits v0.1.36
[INFO] [stderr]    Compiling backtrace v0.3.0
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking cfg-if v0.1.0
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking rustc-demangle v0.1.3
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking log v0.3.6
[INFO] [stderr]     Checking vec_map v0.6.0
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking unicode-segmentation v1.1.0
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]     Checking kernel32-sys v0.2.2
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking ioctl-rs v0.1.5
[INFO] [stderr]     Checking time v0.1.36
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking num-integer v0.1.32
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking serial v0.3.4
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking clap v2.20.5
[INFO] [stderr]     Checking num-iter v0.1.32
[INFO] [stderr]    Compiling backtrace-sys v0.1.10
[INFO] [stderr]     Checking num v0.1.36
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking chrono v0.3.0
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking error-chain v0.9.0
[INFO] [stderr]  Documenting aircarbon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.07s
[INFO] running `Command { std: "docker" "inspect" "85897bb5f2e05f9eb670c4438883b01b1cc3697f08f1943a2a29c576b99b7921", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85897bb5f2e05f9eb670c4438883b01b1cc3697f08f1943a2a29c576b99b7921", kill_on_drop: false }`
[INFO] [stdout] 85897bb5f2e05f9eb670c4438883b01b1cc3697f08f1943a2a29c576b99b7921