[INFO] cloning repository https://github.com/jamesmunns/naught
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jamesmunns/naught" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamesmunns%2Fnaught", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamesmunns%2Fnaught'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ed6901033b688555bb35332e49eea35afffb254f
[INFO] documenting jamesmunns/naught 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%2Fjamesmunns%2Fnaught" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jamesmunns/naught 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/jamesmunns/naught
[INFO] finished tweaking git repo https://github.com/jamesmunns/naught
[INFO] tweaked toml for git repo https://github.com/jamesmunns/naught written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jamesmunns/naught 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustc-demangle v0.1.8
[INFO] [stderr]   Downloaded backtrace v0.3.9
[INFO] [stderr]   Downloaded cfg-if v0.1.4
[INFO] [stderr]   Downloaded toml v0.2.1
[INFO] [stderr]   Downloaded cc v1.0.17
[INFO] [stderr]   Downloaded error-chain v0.12.0
[INFO] [stderr]   Downloaded lazy_static v1.0.1
[INFO] [stderr]   Downloaded rustc_version v0.2.2
[INFO] [stderr]   Downloaded libc v0.2.42
[INFO] [stderr]   Downloaded backtrace-sys v0.1.23
[INFO] [stderr]   Downloaded winapi v0.3.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 1b3df0045252b28ffeb497a6c0aca2b1441e1f6da77e59a6a01e57098d8846a3
[INFO] running `Command { std: "docker" "start" "-a" "1b3df0045252b28ffeb497a6c0aca2b1441e1f6da77e59a6a01e57098d8846a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b3df0045252b28ffeb497a6c0aca2b1441e1f6da77e59a6a01e57098d8846a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b3df0045252b28ffeb497a6c0aca2b1441e1f6da77e59a6a01e57098d8846a3", kill_on_drop: false }`
[INFO] [stdout] 1b3df0045252b28ffeb497a6c0aca2b1441e1f6da77e59a6a01e57098d8846a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] b940605fb8fd997d8032f47dcf49e04478acba22c6508503e87e2fc559c0649d
[INFO] running `Command { std: "docker" "start" "-a" "b940605fb8fd997d8032f47dcf49e04478acba22c6508503e87e2fc559c0649d", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]     Checking rustc-demangle v0.1.8
[INFO] [stderr]     Checking cfg-if v0.1.4
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]    Compiling cross v0.1.15-dev (/opt/rustwide/workdir)
[INFO] [stderr]     Checking lazy_static v1.0.1
[INFO] [stderr]     Checking toml v0.2.1
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking rustc_version v0.2.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]  Documenting cross v0.1.15-dev (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.27s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]    Generated /opt/rustwide/target/doc/cross/index.html
[INFO] running `Command { std: "docker" "inspect" "b940605fb8fd997d8032f47dcf49e04478acba22c6508503e87e2fc559c0649d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b940605fb8fd997d8032f47dcf49e04478acba22c6508503e87e2fc559c0649d", kill_on_drop: false }`
[INFO] [stdout] b940605fb8fd997d8032f47dcf49e04478acba22c6508503e87e2fc559c0649d