[INFO] cloning repository https://github.com/kernelmachine/utah
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kernelmachine/utah" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkernelmachine%2Futah", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkernelmachine%2Futah'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 79d3bb332634a097fae455852a95545a85d44757
[INFO] documenting kernelmachine/utah against 1.75.0 for beta-1.76-rustdoc-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkernelmachine%2Futah" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kernelmachine/utah on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kernelmachine/utah
[INFO] finished tweaking git repo https://github.com/kernelmachine/utah
[INFO] tweaked toml for git repo https://github.com/kernelmachine/utah written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kernelmachine/utah already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.respository
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-complex v0.1.35
[INFO] [stderr]   Downloaded matrixmultiply v0.1.13
[INFO] [stderr]   Downloaded gcc v0.3.41
[INFO] [stderr]   Downloaded backtrace-sys v0.1.5
[INFO] [stderr]   Downloaded itertools v0.5.8
[INFO] [stderr]   Downloaded either v1.0.2
[INFO] [stderr]   Downloaded ndarray-rand v0.3.1
[INFO] [stderr]   Downloaded ndarray v0.7.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef402c1415887062a7c748f50c7e0e68c2f6e0cb9d748425e7cec084d06c75e5
[INFO] running `Command { std: "docker" "start" "-a" "ef402c1415887062a7c748f50c7e0e68c2f6e0cb9d748425e7cec084d06c75e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef402c1415887062a7c748f50c7e0e68c2f6e0cb9d748425e7cec084d06c75e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef402c1415887062a7c748f50c7e0e68c2f6e0cb9d748425e7cec084d06c75e5", kill_on_drop: false }`
[INFO] [stdout] ef402c1415887062a7c748f50c7e0e68c2f6e0cb9d748425e7cec084d06c75e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad8ed1e94d0bb26115a61b8866f9b94a441cf2aea2efc298bad4af88d4913b5b
[INFO] running `Command { std: "docker" "start" "-a" "ad8ed1e94d0bb26115a61b8866f9b94a441cf2aea2efc298bad4af88d4913b5b", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.respository
[INFO] [stderr]     Checking libc v0.2.18
[INFO] [stderr]     Checking num-traits v0.1.36
[INFO] [stderr]     Checking rustc-serialize v0.3.22
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling gcc v0.3.41
[INFO] [stderr]    Compiling matrixmultiply v0.1.13
[INFO] [stderr]    Compiling backtrace v0.3.0
[INFO] [stderr]    Compiling ndarray v0.7.2
[INFO] [stderr]     Checking either v1.0.2
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking rustc-demangle v0.1.3
[INFO] [stderr]     Checking cfg-if v0.1.0
[INFO] [stderr]     Checking itertools v0.5.8
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking num-integer v0.1.32
[INFO] [stderr]    Compiling backtrace-sys v0.1.5
[INFO] [stderr]     Checking num-iter v0.1.32
[INFO] [stderr]     Checking error-chain v0.7.2
[INFO] [stderr]     Checking num-complex v0.1.35
[INFO] [stderr]     Checking num-bigint v0.1.35
[INFO] [stderr]     Checking csv v0.14.7
[INFO] [stderr]     Checking num-rational v0.1.35
[INFO] [stderr]     Checking num v0.1.36
[INFO] [stderr]     Checking ndarray-rand v0.3.1
[INFO] [stderr]  Documenting utah v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.68s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.22
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] [stderr]    Generated /opt/rustwide/target/doc/utah/index.html
[INFO] running `Command { std: "docker" "inspect" "ad8ed1e94d0bb26115a61b8866f9b94a441cf2aea2efc298bad4af88d4913b5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad8ed1e94d0bb26115a61b8866f9b94a441cf2aea2efc298bad4af88d4913b5b", kill_on_drop: false }`
[INFO] [stdout] ad8ed1e94d0bb26115a61b8866f9b94a441cf2aea2efc298bad4af88d4913b5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4897dbd29a769391c283a7edd8827f9c2d0c7da3171c3aa0ca42f82f8d351fb8
[INFO] running `Command { std: "docker" "start" "-a" "4897dbd29a769391c283a7edd8827f9c2d0c7da3171c3aa0ca42f82f8d351fb8", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.respository
[INFO] [stderr]  Documenting utah v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.22
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] [stderr]    Generated /opt/rustwide/target/doc/utah/index.html
[INFO] running `Command { std: "docker" "inspect" "4897dbd29a769391c283a7edd8827f9c2d0c7da3171c3aa0ca42f82f8d351fb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4897dbd29a769391c283a7edd8827f9c2d0c7da3171c3aa0ca42f82f8d351fb8", kill_on_drop: false }`
[INFO] [stdout] 4897dbd29a769391c283a7edd8827f9c2d0c7da3171c3aa0ca42f82f8d351fb8