[INFO] fetching crate libzmq 0.2.5...
[INFO] documenting libzmq-0.2.5 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate libzmq 0.2.5 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate libzmq 0.2.5 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libzmq 0.2.5
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate libzmq 0.2.5
[INFO] tweaked toml for crates.io crate libzmq 0.2.5 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate libzmq 0.2.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libzmq-sys v0.1.8+4.3.2
[INFO] [stderr]   Downloaded serde_derive v1.0.107
[INFO] [stderr]   Downloaded flatc-rust v0.1.2
[INFO] [stderr]   Downloaded version-sync v0.9.0
[INFO] [stderr]   Downloaded pulldown-cmark v0.7.1
[INFO] [stderr]   Downloaded zeromq-src v0.1.10+4.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2020-08-29" "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] e593879b6d86a3774dd250617971424c3400fd9a7b5006136878f4cbec654bd7
[INFO] running `Command { std: "docker" "start" "-a" "e593879b6d86a3774dd250617971424c3400fd9a7b5006136878f4cbec654bd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e593879b6d86a3774dd250617971424c3400fd9a7b5006136878f4cbec654bd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e593879b6d86a3774dd250617971424c3400fd9a7b5006136878f4cbec654bd7", kill_on_drop: false }`
[INFO] [stdout] e593879b6d86a3774dd250617971424c3400fd9a7b5006136878f4cbec654bd7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce942c0e822e8c39ffaae4db0250553640efb37cbcc13353937697fa54b06dc5
[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" "ce942c0e822e8c39ffaae4db0250553640efb37cbcc13353937697fa54b06dc5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]    Compiling serde v1.0.107
[INFO] [stderr]     Checking humantime v2.0.0
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]    Compiling zeromq-src v0.1.10+4.3.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling libzmq-sys v0.1.8+4.3.2
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]    Compiling serde_derive v1.0.107
[INFO] [stderr]    Compiling serde_with_macros v1.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.16
[INFO] [stderr]     Checking thiserror v1.0.16
[INFO] [stderr]     Checking serde_with v1.4.0
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking humantime-serde v1.0.0
[INFO] [stderr]  Documenting libzmq v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 11s
[INFO] running `Command { std: "docker" "inspect" "ce942c0e822e8c39ffaae4db0250553640efb37cbcc13353937697fa54b06dc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce942c0e822e8c39ffaae4db0250553640efb37cbcc13353937697fa54b06dc5", kill_on_drop: false }`
[INFO] [stdout] ce942c0e822e8c39ffaae4db0250553640efb37cbcc13353937697fa54b06dc5