[INFO] cloning repository https://github.com/isalevine/rustbook-hello-cargo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/isalevine/rustbook-hello-cargo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fisalevine%2Frustbook-hello-cargo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fisalevine%2Frustbook-hello-cargo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e179ddf34e3efb8ae172aec47e71f9c50168a19a
[INFO] documenting isalevine/rustbook-hello-cargo 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%2Fisalevine%2Frustbook-hello-cargo" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/isalevine/rustbook-hello-cargo 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/isalevine/rustbook-hello-cargo
[INFO] finished tweaking git repo https://github.com/isalevine/rustbook-hello-cargo
[INFO] tweaked toml for git repo https://github.com/isalevine/rustbook-hello-cargo written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/isalevine/rustbook-hello-cargo 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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 449d3e216f72572160687dbb3c00f4175f002796040f8b72a438a9eb01b83005
[INFO] running `Command { std: "docker" "start" "-a" "449d3e216f72572160687dbb3c00f4175f002796040f8b72a438a9eb01b83005", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "449d3e216f72572160687dbb3c00f4175f002796040f8b72a438a9eb01b83005", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "449d3e216f72572160687dbb3c00f4175f002796040f8b72a438a9eb01b83005", kill_on_drop: false }`
[INFO] [stdout] 449d3e216f72572160687dbb3c00f4175f002796040f8b72a438a9eb01b83005
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] a5696cc7255a11d616a3344b0fb543f49efcd48eded6402a5d98026263843a14
[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" "a5696cc7255a11d616a3344b0fb543f49efcd48eded6402a5d98026263843a14", kill_on_drop: false }`
[INFO] [stderr]  Documenting hello-cargo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `Command { std: "docker" "inspect" "a5696cc7255a11d616a3344b0fb543f49efcd48eded6402a5d98026263843a14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5696cc7255a11d616a3344b0fb543f49efcd48eded6402a5d98026263843a14", kill_on_drop: false }`
[INFO] [stdout] a5696cc7255a11d616a3344b0fb543f49efcd48eded6402a5d98026263843a14