[INFO] cloning repository https://github.com/Michael-F-Bryan/rustc-internal-docs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Michael-F-Bryan/rustc-internal-docs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichael-F-Bryan%2Frustc-internal-docs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichael-F-Bryan%2Frustc-internal-docs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 32c93b53eb2c8603a0257dba7c04ed502c4c0f02
[INFO] documenting Michael-F-Bryan/rustc-internal-docs against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichael-F-Bryan%2Frustc-internal-docs" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Michael-F-Bryan/rustc-internal-docs on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Michael-F-Bryan/rustc-internal-docs
[INFO] finished tweaking git repo https://github.com/Michael-F-Bryan/rustc-internal-docs
[INFO] tweaked toml for git repo https://github.com/Michael-F-Bryan/rustc-internal-docs written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/Michael-F-Bryan/rustc-internal-docs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "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] 14bdfc51a29575a93f94052cd24cbf239044436e0c1028dfac30fa62d80b75cd
[INFO] running `Command { std: "docker" "start" "-a" "14bdfc51a29575a93f94052cd24cbf239044436e0c1028dfac30fa62d80b75cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "14bdfc51a29575a93f94052cd24cbf239044436e0c1028dfac30fa62d80b75cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14bdfc51a29575a93f94052cd24cbf239044436e0c1028dfac30fa62d80b75cd", kill_on_drop: false }`
[INFO] [stdout] 14bdfc51a29575a93f94052cd24cbf239044436e0c1028dfac30fa62d80b75cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e7f756318bd04e7ca5b57da3c0a2279509b39a51832914a617a690bb1c84446
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0e7f756318bd04e7ca5b57da3c0a2279509b39a51832914a617a690bb1c84446", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.36
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling cc v1.0.4
[INFO] [stderr]     Checking num-traits v0.1.41
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.4.2
[INFO] [stderr]     Checking rustc-demangle v0.1.5
[INFO] [stderr]     Checking termcolor v0.3.3
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking ansi_term v0.10.2
[INFO] [stderr]     Checking serde v1.0.27
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking shlex v0.1.1
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking num-integer v0.1.35
[INFO] [stderr]     Checking num-iter v0.1.34
[INFO] [stderr]     Checking walkdir v0.1.8
[INFO] [stderr]     Checking num v0.1.41
[INFO] [stderr]     Checking copy_dir v0.1.2
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking atty v0.2.6
[INFO] [stderr]     Checking rand v0.3.20
[INFO] [stderr]     Checking clap v2.29.2
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]     Checking chrono v0.4.0
[INFO] [stderr]     Checking regex v0.2.5
[INFO] [stderr]     Checking tempdir v0.3.5
[INFO] [stderr]    Compiling serde_derive_internals v0.19.0
[INFO] [stderr]     Checking env_logger v0.5.2
[INFO] [stderr]    Compiling serde_derive v1.0.27
[INFO] [stderr]     Checking toml v0.4.5
[INFO] [stderr]     Checking backtrace v0.3.5
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]  Documenting rustc-internal-docs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.61s
[INFO] running `Command { std: "docker" "inspect" "0e7f756318bd04e7ca5b57da3c0a2279509b39a51832914a617a690bb1c84446", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e7f756318bd04e7ca5b57da3c0a2279509b39a51832914a617a690bb1c84446", kill_on_drop: false }`
[INFO] [stdout] 0e7f756318bd04e7ca5b57da3c0a2279509b39a51832914a617a690bb1c84446