[INFO] cloning repository https://github.com/nigeltx/rusthelloworld
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nigeltx/rusthelloworld" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnigeltx%2Frusthelloworld", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnigeltx%2Frusthelloworld'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e958f63124788ff8b849a2a537e981e5fe95bbd4
[INFO] documenting nigeltx/rusthelloworld against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnigeltx%2Frusthelloworld" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nigeltx/rusthelloworld on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nigeltx/rusthelloworld
[INFO] finished tweaking git repo https://github.com/nigeltx/rusthelloworld
[INFO] tweaked toml for git repo https://github.com/nigeltx/rusthelloworld written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/nigeltx/rusthelloworld already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7085a6ca81a96caa23efddc62da607808319c5bfb64ae8298fb2f6b02c703aa7
[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" "7085a6ca81a96caa23efddc62da607808319c5bfb64ae8298fb2f6b02c703aa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7085a6ca81a96caa23efddc62da607808319c5bfb64ae8298fb2f6b02c703aa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7085a6ca81a96caa23efddc62da607808319c5bfb64ae8298fb2f6b02c703aa7", kill_on_drop: false }`
[INFO] [stdout] 7085a6ca81a96caa23efddc62da607808319c5bfb64ae8298fb2f6b02c703aa7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8aecb4cc092a0d296303a6fc35f42c482eee24eb999849c03837d0d62267b92
[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" "f8aecb4cc092a0d296303a6fc35f42c482eee24eb999849c03837d0d62267b92", kill_on_drop: false }`
[INFO] [stderr]  Documenting helloworld v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `Command { std: "docker" "inspect" "f8aecb4cc092a0d296303a6fc35f42c482eee24eb999849c03837d0d62267b92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8aecb4cc092a0d296303a6fc35f42c482eee24eb999849c03837d0d62267b92", kill_on_drop: false }`
[INFO] [stdout] f8aecb4cc092a0d296303a6fc35f42c482eee24eb999849c03837d0d62267b92