[INFO] cloning repository https://github.com/mudlord/rust_kgtut
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mudlord/rust_kgtut" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmudlord%2Frust_kgtut", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmudlord%2Frust_kgtut'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 13ae52e7fdf646bec712736a5aab813abb0e58db
[INFO] documenting mudlord/rust_kgtut against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmudlord%2Frust_kgtut" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mudlord/rust_kgtut on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mudlord/rust_kgtut
[INFO] finished tweaking git repo https://github.com/mudlord/rust_kgtut
[INFO] tweaked toml for git repo https://github.com/mudlord/rust_kgtut written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/mudlord/rust_kgtut already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be1169d3a14895082886bf9c281cb85c260e3f0b527b2dd802dfe45b3e23a92e
[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" "be1169d3a14895082886bf9c281cb85c260e3f0b527b2dd802dfe45b3e23a92e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be1169d3a14895082886bf9c281cb85c260e3f0b527b2dd802dfe45b3e23a92e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be1169d3a14895082886bf9c281cb85c260e3f0b527b2dd802dfe45b3e23a92e", kill_on_drop: false }`
[INFO] [stdout] be1169d3a14895082886bf9c281cb85c260e3f0b527b2dd802dfe45b3e23a92e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c7b4661b6b45b81442e632dc40052298877738ddd193249eb919e1947e5f89a
[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" "1c7b4661b6b45b81442e632dc40052298877738ddd193249eb919e1947e5f89a", kill_on_drop: false }`
[INFO] [stderr]  Documenting rust_kgtut v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `Command { std: "docker" "inspect" "1c7b4661b6b45b81442e632dc40052298877738ddd193249eb919e1947e5f89a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c7b4661b6b45b81442e632dc40052298877738ddd193249eb919e1947e5f89a", kill_on_drop: false }`
[INFO] [stdout] 1c7b4661b6b45b81442e632dc40052298877738ddd193249eb919e1947e5f89a