[INFO] cloning repository https://github.com/jrforrest/rustnqueens
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jrforrest/rustnqueens" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrforrest%2Frustnqueens", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrforrest%2Frustnqueens'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 57d595004bbfda907263040f21e8be7898264d8c
[INFO] documenting jrforrest/rustnqueens 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%2Fjrforrest%2Frustnqueens" "/workspace/builds/worker-22/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-22/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jrforrest/rustnqueens 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/jrforrest/rustnqueens
[INFO] finished tweaking git repo https://github.com/jrforrest/rustnqueens
[INFO] tweaked toml for git repo https://github.com/jrforrest/rustnqueens written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] crate git repo https://github.com/jrforrest/rustnqueens 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 bit-set v0.2.0
[INFO] [stderr]   Downloaded ncurses v5.85.0
[INFO] [stderr]   Downloaded chan v0.1.18
[INFO] [stderr]   Downloaded chan-signal v0.1.7
[INFO] [stderr]   Downloaded cursive v0.3.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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] b0ad6b89c664da2a1e266a22719d775102f444ef2fa0b4d2bb15600e98b837ed
[INFO] running `Command { std: "docker" "start" "-a" "b0ad6b89c664da2a1e266a22719d775102f444ef2fa0b4d2bb15600e98b837ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0ad6b89c664da2a1e266a22719d775102f444ef2fa0b4d2bb15600e98b837ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0ad6b89c664da2a1e266a22719d775102f444ef2fa0b4d2bb15600e98b837ed", kill_on_drop: false }`
[INFO] [stdout] b0ad6b89c664da2a1e266a22719d775102f444ef2fa0b4d2bb15600e98b837ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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] 52ce3f36e288c2601e0a8fe4c693431e5e0e8a136a1f37f8bc1228c49a804134
[INFO] running `Command { std: "docker" "start" "-a" "52ce3f36e288c2601e0a8fe4c693431e5e0e8a136a1f37f8bc1228c49a804134", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.11
[INFO] [stderr]     Checking num-traits v0.1.36
[INFO] [stderr]     Checking rustc-serialize v0.3.22
[INFO] [stderr]    Compiling gcc v0.3.41
[INFO] [stderr]     Checking bit-vec v0.4.3
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr]    Compiling cursive v0.3.7
[INFO] [stderr]     Checking unicode-segmentation v1.0.1
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking odds v0.2.25
[INFO] [stderr]     Checking bit-set v0.2.0
[INFO] [stderr]     Checking rand v0.3.14
[INFO] [stderr]     Checking num-integer v0.1.32
[INFO] [stderr]    Compiling ncurses v5.85.0
[INFO] [stderr]     Checking num-iter v0.1.32
[INFO] [stderr]     Checking chan v0.1.18
[INFO] [stderr]     Checking chan-signal v0.1.7
[INFO] [stderr]     Checking num-bigint v0.1.35
[INFO] [stderr]     Checking num-complex v0.1.35
[INFO] [stderr]     Checking toml v0.2.1
[INFO] [stderr]     Checking num-rational v0.1.35
[INFO] [stderr]     Checking num v0.1.36
[INFO] [stderr]  Documenting rustnqueens v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.15s
[INFO] running `Command { std: "docker" "inspect" "52ce3f36e288c2601e0a8fe4c693431e5e0e8a136a1f37f8bc1228c49a804134", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52ce3f36e288c2601e0a8fe4c693431e5e0e8a136a1f37f8bc1228c49a804134", kill_on_drop: false }`
[INFO] [stdout] 52ce3f36e288c2601e0a8fe4c693431e5e0e8a136a1f37f8bc1228c49a804134