[INFO] cloning repository https://github.com/uchuhimo/rust_playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/uchuhimo/rust_playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuchuhimo%2Frust_playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuchuhimo%2Frust_playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 216615f4167db9941b3bb4d9084204e6dc953140
[INFO] documenting uchuhimo/rust_playground against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuchuhimo%2Frust_playground" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/uchuhimo/rust_playground on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/uchuhimo/rust_playground
[INFO] finished tweaking git repo https://github.com/uchuhimo/rust_playground
[INFO] tweaked toml for git repo https://github.com/uchuhimo/rust_playground written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/uchuhimo/rust_playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "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] da79438f2f67e0908a29ba49d50a5a91b433aa1271554269dd338abd1fba1e3a
[INFO] running `Command { std: "docker" "start" "-a" "da79438f2f67e0908a29ba49d50a5a91b433aa1271554269dd338abd1fba1e3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da79438f2f67e0908a29ba49d50a5a91b433aa1271554269dd338abd1fba1e3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da79438f2f67e0908a29ba49d50a5a91b433aa1271554269dd338abd1fba1e3a", kill_on_drop: false }`
[INFO] [stdout] da79438f2f67e0908a29ba49d50a5a91b433aa1271554269dd338abd1fba1e3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "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] 033ddde27e88554001dfc0a8648cf35f33e8db729e9da7d06d52f743c9309d54
[INFO] running `Command { std: "docker" "start" "-a" "033ddde27e88554001dfc0a8648cf35f33e8db729e9da7d06d52f743c9309d54", kill_on_drop: false }`
[INFO] [stderr]  Documenting rust_playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rust_playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.40s
[INFO] running `Command { std: "docker" "inspect" "033ddde27e88554001dfc0a8648cf35f33e8db729e9da7d06d52f743c9309d54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "033ddde27e88554001dfc0a8648cf35f33e8db729e9da7d06d52f743c9309d54", kill_on_drop: false }`
[INFO] [stdout] 033ddde27e88554001dfc0a8648cf35f33e8db729e9da7d06d52f743c9309d54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", 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] 791336a77b53dd716325b585a4e61c752369a8694fbbb9396c90b1c23ec9559b
[INFO] running `Command { std: "docker" "start" "-a" "791336a77b53dd716325b585a4e61c752369a8694fbbb9396c90b1c23ec9559b", kill_on_drop: false }`
[INFO] [stderr]  Documenting rust_playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.59s
[INFO] running `Command { std: "docker" "inspect" "791336a77b53dd716325b585a4e61c752369a8694fbbb9396c90b1c23ec9559b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "791336a77b53dd716325b585a4e61c752369a8694fbbb9396c90b1c23ec9559b", kill_on_drop: false }`
[INFO] [stdout] 791336a77b53dd716325b585a4e61c752369a8694fbbb9396c90b1c23ec9559b