[INFO] cloning repository https://github.com/zeref-dragneel/rust-lang-guide
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zeref-dragneel/rust-lang-guide" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzeref-dragneel%2Frust-lang-guide", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzeref-dragneel%2Frust-lang-guide'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 52e4a27a376ba42dd4ca013bdc4fa08273476101
[INFO] documenting zeref-dragneel/rust-lang-guide 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%2Fzeref-dragneel%2Frust-lang-guide" "/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/zeref-dragneel/rust-lang-guide 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/zeref-dragneel/rust-lang-guide
[INFO] finished tweaking git repo https://github.com/zeref-dragneel/rust-lang-guide
[INFO] tweaked toml for git repo https://github.com/zeref-dragneel/rust-lang-guide written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/zeref-dragneel/rust-lang-guide 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] 657ec95aa5dc68ab3220d2d9e68d24b64c4ded4145ea531ca5e131c0038e89c7
[INFO] running `Command { std: "docker" "start" "-a" "657ec95aa5dc68ab3220d2d9e68d24b64c4ded4145ea531ca5e131c0038e89c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "657ec95aa5dc68ab3220d2d9e68d24b64c4ded4145ea531ca5e131c0038e89c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "657ec95aa5dc68ab3220d2d9e68d24b64c4ded4145ea531ca5e131c0038e89c7", kill_on_drop: false }`
[INFO] [stdout] 657ec95aa5dc68ab3220d2d9e68d24b64c4ded4145ea531ca5e131c0038e89c7
[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] 575fc5229bacfd2dada80cc3943e9af62300ca2edfb8618824f9ca0002cf18b6
[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" "575fc5229bacfd2dada80cc3943e9af62300ca2edfb8618824f9ca0002cf18b6", kill_on_drop: false }`
[INFO] [stderr]  Documenting rustlang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.78s
[INFO] running `Command { std: "docker" "inspect" "575fc5229bacfd2dada80cc3943e9af62300ca2edfb8618824f9ca0002cf18b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "575fc5229bacfd2dada80cc3943e9af62300ca2edfb8618824f9ca0002cf18b6", kill_on_drop: false }`
[INFO] [stdout] 575fc5229bacfd2dada80cc3943e9af62300ca2edfb8618824f9ca0002cf18b6