[INFO] cloning repository https://github.com/stepchowfun/docuum
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stepchowfun/docuum" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstepchowfun%2Fdocuum", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstepchowfun%2Fdocuum'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 63a0bc617d4eece2685b3dd8af710d519d59d4ed
[INFO] documenting stepchowfun/docuum against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstepchowfun%2Fdocuum" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stepchowfun/docuum 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/stepchowfun/docuum
[INFO] finished tweaking git repo https://github.com/stepchowfun/docuum
[INFO] tweaked toml for git repo https://github.com/stepchowfun/docuum written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/stepchowfun/docuum 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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stdout] 97689aacb46117b474d6594c60f5f7b47fa0bd992ca5c8c7b89bb929a9fb5d8b
[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" "97689aacb46117b474d6594c60f5f7b47fa0bd992ca5c8c7b89bb929a9fb5d8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97689aacb46117b474d6594c60f5f7b47fa0bd992ca5c8c7b89bb929a9fb5d8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97689aacb46117b474d6594c60f5f7b47fa0bd992ca5c8c7b89bb929a9fb5d8b", kill_on_drop: false }`
[INFO] [stdout] 97689aacb46117b474d6594c60f5f7b47fa0bd992ca5c8c7b89bb929a9fb5d8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9e3f02ee7905d70722d1f63cc868090c97c6c32110bac092db02b951e5df7e65
[INFO] running `Command { std: "docker" "start" "-a" "9e3f02ee7905d70722d1f63cc868090c97c6c32110bac092db02b951e5df7e65", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking dtoa v0.4.4
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]     Checking byte-unit v3.0.3
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking term_size v0.3.1
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking colored v1.9.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]  Documenting docuum v0.9.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.57s
[INFO] running `Command { std: "docker" "inspect" "9e3f02ee7905d70722d1f63cc868090c97c6c32110bac092db02b951e5df7e65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e3f02ee7905d70722d1f63cc868090c97c6c32110bac092db02b951e5df7e65", kill_on_drop: false }`
[INFO] [stdout] 9e3f02ee7905d70722d1f63cc868090c97c6c32110bac092db02b951e5df7e65