[INFO] cloning repository https://github.com/EngineersBox/Rust-MQTT
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/EngineersBox/Rust-MQTT" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEngineersBox%2FRust-MQTT", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEngineersBox%2FRust-MQTT'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 286732c6eec2afeca54161fe8a274323c49d0f29
[INFO] documenting EngineersBox/Rust-MQTT 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%2FEngineersBox%2FRust-MQTT" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/EngineersBox/Rust-MQTT 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/EngineersBox/Rust-MQTT
[INFO] finished tweaking git repo https://github.com/EngineersBox/Rust-MQTT
[INFO] tweaked toml for git repo https://github.com/EngineersBox/Rust-MQTT written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/EngineersBox/Rust-MQTT 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thread-id v4.0.0
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.4
[INFO] [stderr]   Downloaded vcpkg v0.2.12
[INFO] [stderr]   Downloaded paho-mqtt v0.9.1
[INFO] [stderr]   Downloaded paho-mqtt-sys v0.5.0
[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] [stdout] 1f85c942d55e53051fe6683803630be26358d337d5b60a9a784924b4369f7fbc
[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" "1f85c942d55e53051fe6683803630be26358d337d5b60a9a784924b4369f7fbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f85c942d55e53051fe6683803630be26358d337d5b60a9a784924b4369f7fbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f85c942d55e53051fe6683803630be26358d337d5b60a9a784924b4369f7fbc", kill_on_drop: false }`
[INFO] [stdout] 1f85c942d55e53051fe6683803630be26358d337d5b60a9a784924b4369f7fbc
[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] 14f18eea3e041be4507d40be778e498c2b92399abdbff78fbf009498ac0652a7
[INFO] running `Command { std: "docker" "start" "-a" "14f18eea3e041be4507d40be778e498c2b92399abdbff78fbf009498ac0652a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling crossbeam-utils v0.8.4
[INFO] [stderr]    Compiling openssl-sys v0.9.63
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking thread-id v4.0.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling paho-mqtt-sys v0.5.0
[INFO] [stderr]     Checking term v0.7.0
[INFO] [stderr]     Checking futures-channel v0.3.15
[INFO] [stderr]     Checking java-properties v1.3.0
[INFO] [stderr]     Checking slog-term v2.8.0
[INFO] [stderr]     Checking slog-json v2.3.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking slog-async v2.6.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking futures-executor v0.3.15
[INFO] [stderr]     Checking futures v0.3.15
[INFO] [stderr]     Checking paho-mqtt v0.9.1
[INFO] [stderr]  Documenting rust-mqtt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 59.66s
[INFO] running `Command { std: "docker" "inspect" "14f18eea3e041be4507d40be778e498c2b92399abdbff78fbf009498ac0652a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14f18eea3e041be4507d40be778e498c2b92399abdbff78fbf009498ac0652a7", kill_on_drop: false }`
[INFO] [stdout] 14f18eea3e041be4507d40be778e498c2b92399abdbff78fbf009498ac0652a7