[INFO] fetching crate btrfs-send-parse 0.1.0...
[INFO] documenting btrfs-send-parse-0.1.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate btrfs-send-parse 0.1.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate btrfs-send-parse 0.1.0 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 crates.io crate btrfs-send-parse 0.1.0
[INFO] finished tweaking crates.io crate btrfs-send-parse 0.1.0
[INFO] tweaked toml for crates.io crate btrfs-send-parse 0.1.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] ccbfabc39219e3297a8c4c1685dae4a3a81f9f197d92ca6401228160cc3a612e
[INFO] running `Command { std: "docker" "start" "-a" "ccbfabc39219e3297a8c4c1685dae4a3a81f9f197d92ca6401228160cc3a612e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ccbfabc39219e3297a8c4c1685dae4a3a81f9f197d92ca6401228160cc3a612e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccbfabc39219e3297a8c4c1685dae4a3a81f9f197d92ca6401228160cc3a612e", kill_on_drop: false }`
[INFO] [stdout] ccbfabc39219e3297a8c4c1685dae4a3a81f9f197d92ca6401228160cc3a612e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 7ed919d5b0c427bb0abeb247fc19784a26ad9be4590c61d01595fc90bb0ef84e
[INFO] running `Command { std: "docker" "start" "-a" "7ed919d5b0c427bb0abeb247fc19784a26ad9be4590c61d01595fc90bb0ef84e", kill_on_drop: false }`
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]  Documenting btrfs-send-parse v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.59s
[INFO] running `Command { std: "docker" "inspect" "7ed919d5b0c427bb0abeb247fc19784a26ad9be4590c61d01595fc90bb0ef84e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ed919d5b0c427bb0abeb247fc19784a26ad9be4590c61d01595fc90bb0ef84e", kill_on_drop: false }`
[INFO] [stdout] 7ed919d5b0c427bb0abeb247fc19784a26ad9be4590c61d01595fc90bb0ef84e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=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] 40fc375ce0d6796ce252e6ddbb33d7b5dab928701ea3716c97efd76067b0710e
[INFO] running `Command { std: "docker" "start" "-a" "40fc375ce0d6796ce252e6ddbb33d7b5dab928701ea3716c97efd76067b0710e", kill_on_drop: false }`
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]  Documenting btrfs-send-parse v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.26s
[INFO] running `Command { std: "docker" "inspect" "40fc375ce0d6796ce252e6ddbb33d7b5dab928701ea3716c97efd76067b0710e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40fc375ce0d6796ce252e6ddbb33d7b5dab928701ea3716c97efd76067b0710e", kill_on_drop: false }`
[INFO] [stdout] 40fc375ce0d6796ce252e6ddbb33d7b5dab928701ea3716c97efd76067b0710e