[INFO] cloning repository https://github.com/VaclavStebra/rust-book-understanding-ownership
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/VaclavStebra/rust-book-understanding-ownership" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVaclavStebra%2Frust-book-understanding-ownership", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVaclavStebra%2Frust-book-understanding-ownership'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3960aaa13804e7853505d7883f88617de1123cd2
[INFO] documenting VaclavStebra/rust-book-understanding-ownership against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVaclavStebra%2Frust-book-understanding-ownership" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/VaclavStebra/rust-book-understanding-ownership on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/VaclavStebra/rust-book-understanding-ownership
[INFO] finished tweaking git repo https://github.com/VaclavStebra/rust-book-understanding-ownership
[INFO] tweaked toml for git repo https://github.com/VaclavStebra/rust-book-understanding-ownership written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/VaclavStebra/rust-book-understanding-ownership already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d384bf87e88cf8d8e44d5413476ec7a29c9e406b7355f0e6a221fde7864fb0db
[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" "d384bf87e88cf8d8e44d5413476ec7a29c9e406b7355f0e6a221fde7864fb0db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d384bf87e88cf8d8e44d5413476ec7a29c9e406b7355f0e6a221fde7864fb0db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d384bf87e88cf8d8e44d5413476ec7a29c9e406b7355f0e6a221fde7864fb0db", kill_on_drop: false }`
[INFO] [stdout] d384bf87e88cf8d8e44d5413476ec7a29c9e406b7355f0e6a221fde7864fb0db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "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] 8fa7c459bb74a7dbb916d2b25f8b22c629a2a8dfc6fb786fb60a7a40c12c59e7
[INFO] running `Command { std: "docker" "start" "-a" "8fa7c459bb74a7dbb916d2b25f8b22c629a2a8dfc6fb786fb60a7a40c12c59e7", kill_on_drop: false }`
[INFO] [stderr]  Documenting rust-book-understanding-ownership v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `Command { std: "docker" "inspect" "8fa7c459bb74a7dbb916d2b25f8b22c629a2a8dfc6fb786fb60a7a40c12c59e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fa7c459bb74a7dbb916d2b25f8b22c629a2a8dfc6fb786fb60a7a40c12c59e7", kill_on_drop: false }`
[INFO] [stdout] 8fa7c459bb74a7dbb916d2b25f8b22c629a2a8dfc6fb786fb60a7a40c12c59e7